| **Fair Value Measurements (Financial Assets and Liabilities Measured at Fair Value On a Recurring Basis) (Details) (USD $)In Millions, unless otherwise specified** | Dec. 31, 2012 | Dec. 31, 2012U.S. government and agency obligations [Member] | Dec. 31, 2013Level 3 [Member]U.S. government and agency obligations [Member] | Dec. 31, 2013Recurring [Member] | Mar. 31, 2013Recurring [Member] | Dec. 31, 2013Recurring [Member]Foreign currency swaps [Member] | Mar. 31, 2013Recurring [Member]Foreign currency swaps [Member] | Dec. 31, 2013Recurring [Member]Interest rate swap [Member] | Mar. 31, 2013Recurring [Member]Interest rate swap [Member] | Dec. 31, 2013Recurring [Member]Debt instruments [Member]U.S. government and agency obligations [Member] | Mar. 31, 2013Recurring [Member]Debt instruments [Member]U.S. government and agency obligations [Member] | Dec. 31, 2013Recurring [Member]Debt instruments [Member]Municipal debt securities [Member] | Mar. 31, 2013Recurring [Member]Debt instruments [Member]Municipal debt securities [Member] | Dec. 31, 2013Recurring [Member]Debt instruments [Member]Certificates Of Deposit [Member] | Mar. 31, 2013Recurring [Member]Debt instruments [Member]Certificates Of Deposit [Member] | Dec. 31, 2013Recurring [Member]Debt instruments [Member]Commercial paper [Member] | Mar. 31, 2013Recurring [Member]Debt instruments [Member]Commercial paper [Member] | Dec. 31, 2013Recurring [Member]Debt instruments [Member]Foreign government debt securities [Member] | Mar. 31, 2013Recurring [Member]Debt instruments [Member]Foreign government debt securities [Member] | Dec. 31, 2013Recurring [Member]Debt instruments [Member]Corporate debt securities [Member] | Mar. 31, 2013Recurring [Member]Debt instruments [Member]Corporate debt securities [Member] | Dec. 31, 2013Recurring [Member]Debt instruments [Member]U.S. government agency mortgage-backed securities [Member] | Mar. 31, 2013Recurring [Member]Debt instruments [Member]U.S. government agency mortgage-backed securities [Member] | Dec. 31, 2013Recurring [Member]Debt instruments [Member]Non-agency residential mortgage-backed securities [Member] | Mar. 31, 2013Recurring [Member]Debt instruments [Member]Non-agency residential mortgage-backed securities [Member] | Dec. 31, 2013Recurring [Member]Debt instruments [Member]Non-agency commercial mortgage-backed securities [Member] | Mar. 31, 2013Recurring [Member]Debt instruments [Member]Non-agency commercial mortgage-backed securities [Member] | Dec. 31, 2013Recurring [Member]Debt instruments [Member]Asset-backed securities [Member] | Mar. 31, 2013Recurring [Member]Debt instruments [Member]Asset-backed securities [Member] | Dec. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income short-term sector fund [Member] | Mar. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income short-term sector fund [Member] | Dec. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income U.S. government sector fund [Member] | Mar. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income U.S. government sector fund [Member] | Dec. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income municipal sector fund [Member] | Mar. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income municipal sector fund [Member] | Dec. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income investment grade corporate sector fund [Member] | Mar. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income investment grade corporate sector fund [Member] | Dec. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income high-yield sector fund [Member] | Mar. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income high-yield sector fund [Member] | Dec. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income real return sector fund [Member] | Mar. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income real return sector fund [Member] | Dec. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income mortgage sector fund [Member] | Mar. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income mortgage sector fund [Member] | Dec. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income asset-backed securities sector fund [Member] | Mar. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income asset-backed securities sector fund [Member] | Dec. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income emerging market sector fund [Member] | Mar. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income emerging market sector fund [Member] | Dec. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income international sector fund [Member] | Mar. 31, 2013Recurring [Member]Equity instruments [Member]Fixed income international sector fund [Member] | Dec. 31, 2013Recurring [Member]Equity instruments [Member]Equity mutual fund - S&P 500 index [Member] | Mar. 31, 2013Recurring [Member]Equity instruments [Member]Equity mutual fund - S&P 500 index [Member] | Dec. 31, 2013Recurring [Member]Money market instruments [Member] | Mar. 31, 2013Recurring [Member]Money market instruments [Member] | Dec. 31, 2013Recurring [Member]Certificates of deposit [Member] | Mar. 31, 2013Recurring [Member]Certificates of deposit [Member] | Mar. 31, 2013Recurring [Member]Commercial paper [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Foreign currency swaps [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Foreign currency swaps [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Interest rate swap [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Interest rate swap [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]U.S. government and agency obligations [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]U.S. government and agency obligations [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]Municipal debt securities [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]Municipal debt securities [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]Certificates Of Deposit [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]Certificates Of Deposit [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]Commercial paper [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]Commercial paper [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]Foreign government debt securities [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]Foreign government debt securities [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]Corporate debt securities [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]Corporate debt securities [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]U.S. government agency mortgage-backed securities [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]U.S. government agency mortgage-backed securities [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]Non-agency residential mortgage-backed securities [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]Non-agency residential mortgage-backed securities [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]Non-agency commercial mortgage-backed securities [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]Non-agency commercial mortgage-backed securities [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]Asset-backed securities [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Debt instruments [Member]Asset-backed securities [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income short-term sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income short-term sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income U.S. government sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income U.S. government sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income municipal sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income municipal sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income investment grade corporate sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income investment grade corporate sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income high-yield sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income high-yield sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income real return sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income real return sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income mortgage sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income mortgage sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income asset-backed securities sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income asset-backed securities sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income emerging market sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income emerging market sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income international sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Fixed income international sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Equity mutual fund - S&P 500 index [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Equity instruments [Member]Equity mutual fund - S&P 500 index [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Money market instruments [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Money market instruments [Member] | Dec. 31, 2013Recurring [Member]Level 1 [Member]Certificates of deposit [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Certificates of deposit [Member] | Mar. 31, 2013Recurring [Member]Level 1 [Member]Commercial paper [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Foreign currency swaps [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Foreign currency swaps [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Interest rate swap [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Interest rate swap [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]U.S. government and agency obligations [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]U.S. government and agency obligations [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]Municipal debt securities [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]Municipal debt securities [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]Certificates Of Deposit [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]Certificates Of Deposit [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]Commercial paper [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]Commercial paper [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]Foreign government debt securities [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]Foreign government debt securities [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]Corporate debt securities [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]Corporate debt securities [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]U.S. government agency mortgage-backed securities [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]U.S. government agency mortgage-backed securities [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]Non-agency residential mortgage-backed securities [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]Non-agency residential mortgage-backed securities [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]Non-agency commercial mortgage-backed securities [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]Non-agency commercial mortgage-backed securities [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]Asset-backed securities [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Debt instruments [Member]Asset-backed securities [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income short-term sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income short-term sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income U.S. government sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income U.S. government sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income municipal sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income municipal sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income investment grade corporate sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income investment grade corporate sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income high-yield sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income high-yield sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income real return sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income real return sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income mortgage sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income mortgage sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income asset-backed securities sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income asset-backed securities sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income emerging market sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income emerging market sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income international sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Fixed income international sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Equity mutual fund - S&P 500 index [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Equity instruments [Member]Equity mutual fund - S&P 500 index [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Money market instruments [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Money market instruments [Member] | Dec. 31, 2013Recurring [Member]Level 2 [Member]Certificates of deposit [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Certificates of deposit [Member] | Mar. 31, 2013Recurring [Member]Level 2 [Member]Commercial paper [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Foreign currency swaps [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Foreign currency swaps [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Interest rate swap [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Interest rate swap [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]U.S. government and agency obligations [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]U.S. government and agency obligations [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]Municipal debt securities [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]Municipal debt securities [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]Certificates Of Deposit [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]Certificates Of Deposit [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]Commercial paper [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]Commercial paper [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]Foreign government debt securities [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]Foreign government debt securities [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]Corporate debt securities [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]Corporate debt securities [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]U.S. government agency mortgage-backed securities [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]U.S. government agency mortgage-backed securities [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]Non-agency residential mortgage-backed securities [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]Non-agency residential mortgage-backed securities [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]Non-agency commercial mortgage-backed securities [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]Non-agency commercial mortgage-backed securities [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]Asset-backed securities [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Debt instruments [Member]Asset-backed securities [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income short-term sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income short-term sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income U.S. government sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income U.S. government sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income municipal sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income municipal sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income investment grade corporate sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income investment grade corporate sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income high-yield sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income high-yield sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income real return sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income real return sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income mortgage sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income mortgage sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income asset-backed securities sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income asset-backed securities sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income emerging market sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income emerging market sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income international sector fund [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Fixed income international sector fund [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Equity mutual fund - S&P 500 index [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Equity instruments [Member]Equity mutual fund - S&P 500 index [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Money market instruments [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Money market instruments [Member] | Dec. 31, 2013Recurring [Member]Level 3 [Member]Certificates of deposit [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Certificates of deposit [Member] | Mar. 31, 2013Recurring [Member]Level 3 [Member]Commercial paper [Member] | Dec. 31, 2013Recurring [Member]Counterparty Netting & Collateral [Member] | Mar. 31, 2013Recurring [Member]Counterparty Netting & Collateral [Member] |
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| **Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]**                                                                    |          |                                                         |                                                                         |                            |                            |                                                           |                                                           |                                                       |                                                       |                                                                                                    |                                                                                                    |                                                                                       |                                                                                       |                       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          |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     |                                            |                                            |                                                                           |                                                                           |                                                                       |                                                                       |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     |                                            |                                            |                                                                           |                                                                           |                                                                       |                                                                       |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     |                                                                          |                                                                          |
| Cash equivalents                                                                                                                                                    |          |                                                         |                                                                         | $ 2,335                         | $ 4,251                         |                                                           |                                                           |                                                       |                                                       |                                                                                                    |                                                                                                    |                                                                                       |                                                                                       |                                                                                     |                                                                                     |                                                                              |                                                                              |                                                                                                |                                                                                                |                                                                                       |                                                                                       |                                                                                                               |                                                                                                               |                                                                                                               |                                                                                                               |                                                                                                              |                                                                                                              |                                                                                     |                                                                                     |                                                                                                   |                                                                                                   |                                                                                                        |                                                                                                        |                                                                                                  |                                                                                                  |                                                                                                                   |                                                                                                                   |                                                                                                   |                                                                                                   |                                                                                                    |                                                                                                    |                                                                                                 |                                                                                                 |                                                                                                                |                                                                                                                |                                                                                                        |                                                                                                        |                                                                                                      |                                                                                                      |                                                                                                      |                                                                                                      | $ 997                                                            | $ 1,508                                                          | $ 1,338                                                         | $ 1,945                                                         | $ 798                                                    | $ 553                                           | $ 900                                           |                                                                           |                                                                           |                                                                       |                                                                       |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      | $ 553                                                                            | $ 900                                                                            | $ 0                                                                             | $ 0                                                                             | $ 0                                                                      | $ 1,782                                         | $ 3,351                                         |                                                                           |                                                                           |                                                                       |                                                                       |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      | $ 444                                                                            | $ 608                                                                            | $ 1,338                                                                         | $ 1,945                                                                         | $ 798                                                                    | $ 0                                             | $ 0                                             |                                                                           |                                                                           |                                                                       |                                                                       |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      | $ 0                                                                              | $ 0                                                                              | $ 0                                                                             | $ 0                                                                             | $ 0                                                                      |                                                                          |                                                                          |
| Available-for-sale securities                                                                                                                                       |          |                                                         |                                                                         | 4,450                           | 5,397                           |                                                           |                                                           |                                                       |                                                       | 87                                                                                                      | 104                                                                                                     | 14                                                                                         | 16                                                                                         | 1,533                                                                                    | 2,041                                                                                    | 125                                                                               | 495                                                                               | 3                                                                                                   | 3                                                                                                   | 153                                                                                        | 128                                                                                        | 64                                                                                                                 | 87                                                                                                                 | 5                  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                                                        | 21                                                                                                    | 22                                                                                                    | 310                                                                                                                    | 327                                                                                                                    | 43                                                                                                     | 42                                                                                                     | 268                                                                                                     | 293                                                                                                     | 558                                                                    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                    |                                                             |                                                             |                                                            |                                                            |                                                     | 557                                             | 526                                             |                                                                           |                                                                           |                                                                       |                                                                       | 28                                                                                                                      | 42                                                                                                                      | 0                                                                                                          | 0                                                                                                          | 0                                                                                                        | 0                                                                                                        | 0                                                                                                 | 0                                                                                                 | 0                                                                                                                   | 0                                                                                                                   | 0                                                                                                          | 0                                                                                                          | 0                                                                                                                                  | 0                                                                                                                                  | 0                                                                                                                                  | 0                                                                                                                                  | 0                                                                                                                                 | 0                                                                                                                                 | 0                                                                                                        | 0                                                                                                        | 0                                                                                                                      | 0                                                                                                                      | 0                                                                                                                           | 0                                                                                                                           | 0                                                                                                                     | 0                                                                                                                     | 0                                                                                                                                      | 0                                                                                                                                      | 0                                                                                                                      | 0                                                                                                                      | 0                                                                                                                       | 0                                                                                                                       | 0                                                                                                                    | 0                                                                                                                    | 0                                                                                                                                   | 0                                                                                                                                   | 0                                                                                                                           | 0                                                                                                                           | 0                                                                                                                         | 0                                                                                                                         | 529                                                                                                                       | 484                                                                                                                       |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     | 3,804                                           | 4,798                                           |                                                                           |                                                                           |                                                                       |                                                                       | 57                                                                                                                      | 62                                                                                                                      | 14                                                                                                         | 16                                                                                                         | 1,533                                                                                                    | 2,041                                                                                                    | 125                                                                                               | 495                                                                                               | 3                                                                                                                   | 3                                                                                                                   | 144                                                                                                        | 124                                                                                                        | 64                                                                                                                                 | 87                                                                                                                                 | 0                                                                                                                                  | 0                                                                                                                                  | 0                                                                                                                                 | 0                                                                                                                                 | 0                                                                                                        | 0                                                                                                        | 44                                                                                                                     | 43                                                                                                                     | 337                                                                                                                         | 312                                                                                                                         | 21                                                                                                                    | 22                                                                                                                    | 310                                                                                                                                    | 327                                                                                                                                    | 43                                                                              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                                   | 66                                                                                                                          | 170                                                                                                                       | 170                                                                                                                       | 0                                                                                                                         | 0                                                                                                                         |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     | 89                                              | 73                                              |                                                                           |                                                                           |                                                                       |                                                                       | 2                                                                                                                       | 0                                                                                                                       | 0                                                                                                          | 0                                                                                                          | 0                                                                                                        | 0                                                                                                        | 0                                                                                                 | 0                                                                                                 | 0                                                                                                                   | 0                                                                                                                   | 9                                                                                                          | 4                                                                                                          | 0                                                                                                                                  | 0                                                                                                                                  | 5                                                                                                                                  | 5                                                                                                                                  | 50                                                                                                                                | 51                                                                                                                                | 23                                                                                                       | 13                                                                                                       | 0                                                                                                                      | 0                                                                                                                      | 0                                                                                                                           | 0                                                                                                                           | 0                                                                                                                     | 0                                                                                                                     | 0                                                                                                                                      | 0                                                                                                                                      | 0                                                                                                                      | 0                                                                                                                      | 0                                                                                                                       | 0                                                                                                                       | 0                                                                                                                    | 0                                                                                                                    | 0                                                                                                                                   | 0                                                                                                                                   | 0                                                                                                                           | 0                                                                                                                           | 0                                                                                                                         | 0                                                                                                                         | 0                                                                                                                         | 0                                                                                                                         |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     |                                                                          |                                                                          |
| Derivative assets                                                                                                                                                   |          |                                                         |                                                                         | 49                              | 58                              | 994                                                            | 1,139                                                          | 378                                                        | 580                                                        |                                                                                                    |                                                                                                    |                                                                                       |                                                                                       |                                                                                     |                                                                                     |                                                                              |                                                                              |                                                                                                |                                                                                                |                                                                                       |                                                                                       |                                                                                                               |                                                                                                               |                                                                                                               |                                                                                                               |                                                                                                              |                                                                                                              |                                                                                     |                                                                                     |                                                                                                   |                                                                                                   |                                                                                                        |                                                                                                        |                                                                                                  |                                                                                                  |                                                                                                                   |                                                                                                                   |                                                                                                   |                                                                                                   |                                                                                                    |                                                                                                    |                                                                                                 |                                                                                                 |                                                                                                                |                                                                                                                |                                                                                                        |                                                                                                        |                                                                                                      |                                                                                                      |                                                                                                      |                                                                                                      |                                                             |                                                             |                                                            |                                                            |                                                     | 0                                               | 0                                               | 0                                                                              | 0                                                                              | 0                                                                          | 0                                                                          |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     | 1,302                                           | 1,644                                           | 927                                                                            | 1,076                                                                          | 375                                                                        | 568                                                                        |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     | 70                                              | 75                                              | 67                                                                             | 63                                                                             | 3                                                                          | 12                                                                         |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     | (1,323)                                                                       | (1,661)                                                                       |
| Total assets                                                                                                                                                        |          |                                                         |                                                                         | 6,834                           | 9,706                           |                                                           |                                                           |                                                       |                                                       |                                                                                                    |                                                                                                    |                                                                                       |                                                                                       |                                                                                     |                                                                                     |                                                                              |                                                                              |                                                                                                |                                                                                                |                                                                                       |                                                                                       |                                                                                                               |                                                                                                               |                                                                                                               |                                                                                                               |                                                                                                              |                                                                                                              |                                                                                     |                                                                                     |                                                                                                   |                                                                                                   |                                                                                                        |                                                                                                        |                                                                                                  |                                                                                                  |                                                                                                                   |                                                                                                                   |                                                                                                   |                                                                                                   |                                                                                                    |                                                                                                    |                                                                                                 |                                                                                                 |                                                                                                                |                                                                                                                |                                                                                                        |                                                                                                        |                                                                                                      |                                                                                                      |                                                                                                      |                                                                                                      |                                                             |                                                             |                                                            |                                                            |                                                     | 1,110                                           | 1,426                                           |                                                                           |                                                                           |                                                                       |                                                                       |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                        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                                                           |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     | 6,888                                           | 9,793                                           |                                                                           |                                                                           |                                                                       |                                                                       |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     | 159                                             | 148                                             |                                                                           |                                                                           |                                                                       |                                                                       |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     | (1,323)                                                                       | (1,661)                                                                       |
| Derivative liabilities                                                                                                                                              |          |                                                         |                                                                         |                            | (5)                             | (362)                                                          | (131)                                                          | (656)                                                      | (766)                                                      |                                                                                                    |                                                                                                    |                                                                                       |                                                                                       |                                                                                     |                                                                                     |                                                                              |                                                                              |                                                                                                |                                                                                                |                                                                                       |                                                                                       |                                                                                                               |                                                                                                               |                                                                                                               |                                                                                                               |                                                                                                              |                                                                                                              |                                                                                     |                                                                                     |                                                                                                   |                                                                                                   |                                                                                                        |                                                                                                        |                                                                                                  |                                                                                                  |                                                                                                                   |                                                                                                                   |                                                                                                   |                                                                                                   |                                                                                                    |                                                                                                    |                                                                                                 |                                                                                                 |                                                                                                                |                                                                                                                |                                                                                                        |                                                                                                        |                                                                                                      |                                                                                                      |                                                                                                      |                                                                                                      |                                                             |                                                             |                                                            |                                                            |                                                     |                                            | 0                                               | 0                                                                              | 0                                                                              | 0                                                                          | 0                                                                          |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     |                                            | (889)                                           | (348)                                                                          | (123)                                                                          | (656)                                                                      | (766)                                                                      |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     |                                            | (8)                                             | (14)                                                                           | (8)                                                                            | 0                                                                          | 0                                                                          |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     | 1,005                                                                         | 892                                                                           |
| Embedded derivative liabilities                                                                                                                                     |          |                                                         |                                                                         |                            | (12)                            |                                                           |                                                           |                                                       |                                                       |                                                                                                    |                                                                                                    |                                                                                       |                                                                                       |                                                                                     |                                                                                     |                                                                              |                                                                              |                                                                                                |                                                                                                |                                                                                       |                                                                                       |                                                                                                               |                                                                                                               |                                                                                                               |                                                                                                               |                                                                                                              |                                                                                                              |                                                                                     |                                                                                     |                                                                                                   |                                                                                                   |                                                                                                        |                                                                                                        |                                                                                                  |                                                                                                  |                                                                                                                   |                                                                                                                   |                                                                                                   |                                                                                                   |                                                                                                    |                                                                                                    |                                                                                                 |                                                                                                 |                                         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                                                   |                                                     |                                            | 0                                               |                                                                           |                                                                           |                                                                       |                                                                       |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     |                                            | 0                                               |                                                                           |                                                                           |                                                                       |                                                                       |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     |                                            | (12)                                            |                                                                           |                                                                           |                                                                       |                                                                       |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     |                                                                          |                                                                          |
| Total liabilities                                                                                                                                                   |          |                                                         |                                                                         | (13)                            | (17)                            |                                                           |                                                           |                                                       |                                                       |                                                                                                    |                                                                                                    |                                                                                       |                                                                                       |                                                                                     |                                                                                     |                                                                              |                                                                              |                                                                                                |                                                                                                |                                                                                       |                                                                                       |                                                                                                               |                                                                                                               |                                                                                                               |                                                                                                               |                                                                                                              |                                                                                                              |                                                                                     |                                                                                     |                                                                                                   |                                                                                                   |                                                                                                        |                                                                                                        |                                                                                                  |                                                                                                  |                                                                                                                   |                                                                                                                   |                                                                                                   |                                                                                                   |                                                                                                    |                                                                                                    |                                                                                                 |                                                                                                 |                                                                                                                |                                                                                                                |                                                                                                        |                                                                                                        |                                                                                                      |                                                                                                      |                                                                                                      |                                                                                                      |                                                             |                                                             |                                                            |                                                            |                                                     | 0                                               | 0                                               |                                                                           |                                                                           |                                                                       |                                                                       |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     | (1,004)                                         | (889)                                           |                                                                           |                                                                           |                                                                       |                                                                       |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     | (14)                                            | (20)                                            |                                                                           |                                                                           |                                                                       |                                                                       |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     | 1,005                                                                         | 892                                                                           |
| Total net assets                                                                                                                                                    |          |                                                         |                                                                         | 6,821                           | 9,689                           |                                                           |                                                           |                                                       |                                                       |                                                                                                    |                                                                                                    |                                                                                       |                                                                                       |                                                                                     |                                                                                     |                                                                              |                                                                              |                                                                                                |                                                                                                |                                                                                       |                                                                                       |                                                                                                               |                                                                                                               |                                                                                                               |                                                                                                               |                                                                                                              |                                                                                                              |                                                                                     |                                                                                     |                                                                                                   |                                                                                                   |                                                                                                        |                                                                                                        |                                                                                                  |                                                                                                  |                                                                                                                   |                                                                                                                   |                                                                                                   |                                                                                                   |                                                                                                    |                                                                                                    |                                                                                                 |                                                                                                 |                                                                                                                |                                                                                                                |                                                                                                        |                                                                                                        |                                                                                                      |                                                                                                      |                                                                                                      |                                                                                                      |                                                             |                                                             |                                                            |                                                            |                                                     | 1,110                                           | 1,426                                           |                                                                           |                                                                           |                                                                       |                                                                       |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     | 5,884                                           | 8,904                                           |                                                                           |                                                                           |                                                                       |                                                                       |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     | 145                                             | 128                                             |                                                                           |                                                                           |                                                                       |                                                                       |                                                                                                                    |                                                                                                                    |                                                                                                       |                                                                                                       |                                                                                                     |                                                                                                     |                                                                                              |                                                                                              |                                                                                                                |                                                                                                                |                                                                                                       |                                                                                                       |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                               |                                                                                                                              |                                                                                                                              |                                                                                                     |                                                                                                     |                                                                                                                   |                                                                                                                   |                                                                                                                        |                                                                                                                        |                                                                                                                  |                                                                                                                  |                                                                                                                                   |                                                                                                                                   |                                                                                                                   |                                                                                                                   |                                                                                                                    |                                                                                                                    |                                                                                                                 |                                                                                                                 |                                                                                                                                |                                                                                                                                |                                                                                                                        |                                                                                                                        |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                                                                      |                                                                             |                                                                             |                                                                            |                                                                            |                                                                     | (318)                                                                         | (769)                                                                         |
| Transfers from Level 2 to Level 1                                                                                                                                   | 0             | 53                                                           |                                                                         |                            |                            |                                                           |                                                           |                                                       |                                                       |                                                                                                    |                                                                                                    |                                                                                       |                                                                                       |             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| Reclassification from One Level 3 category to another                                                                                                               |          |                                                         | $ 2                                                                          |                            |                            |                                                           |                                                           |                                                       |                                                       |                                                                                                    |                                                                                                    |                                                                                       |                                                                                       |                  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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the aggregate of the assets and the liabilities reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.
+ References
No definition available.
+ Details**Name:**tmcc_AssetsAndLiabilitiesFairValueDisclosure**Namespace Prefix:**tmcc_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                                               |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Reclassification from corporate debt securities asset class to U.S. Government and agency obligations asset class. This reclassification represents a debit to the receiving category.
+ References
No definition available.
+ Details**Name:**tmcc_FairValueAssetsLiabilitiesReclassificationSameLevel**Namespace Prefix:**tmcc_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the aggregate of the assets reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258
+ Details**Name:**us-gaap_AssetsFairValueDisclosure**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item represents Available-for-sale Securities which consist of all investments in certain debt and equity securities neither classified as trading or held-to-maturity securities. A debt security represents a creditor relationship with an enterprise. Debt securities include, among other items, US Treasury securities, US government securities, municipal securities, corporate bonds, convertible debt, commercial paper, and all securitized debt instruments. An equity security represents an ownership interest in an enterprise or the right to acquire or dispose of an ownership interest in an enterprise at fixed or determinable prices. Equity securities include, among other things, common stock, certain preferred stock, warrant rights, call options, and put options, but do not include convertible debt. An entity may opt to provide the reader with additional narrative text to better understand the nature of investments in debt and equity securities which are categorized as Available-for-sale.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 25 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=7534914&loc=d3e22054-111558Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 115 -Paragraph 12 -Subparagraph b -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Available-for-Sale Securities -URI http://asc.fasb.org/extlink&oid=6505594
+ Details**Name:**us-gaap_AvailableForSaleSecuritiesFairValueDisclosure**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission. This item includes currency on hand as well as demand deposits with banks or financial institutions. It also includes other kinds of accounts that have the general characteristics of demand deposits in that the Company may deposit additional funds at any time and also effectively may withdraw funds at any time without prior notice or penalty. Cash equivalents, excluding items classified as marketable securities, include short-term, highly liquid investments that are both readily convertible to known amounts of cash, and so near their maturity that they present minimal risk of changes in value because of changes in interest rates. Generally, only investments with original maturities of three months or less qualify under that definition. Original maturity means original maturity to the entity holding the investment. For example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three years ago does not become a cash equivalent when its remaining maturity is three months.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7 -Footnote 1 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 8 -Footnote 2 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 7, 8, 9, 10 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
+ Details**Name:**us-gaap_CashAndCashEquivalentsFairValueDisclosure**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**instant |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair values as of the balance sheet date of all assets resulting from contracts that meet the criteria of being accounted for as derivative instruments, net of the effects of master netting arrangements.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13495-108611Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name FASB Staff Position (FSP) -Number FIN39-1 -Paragraph 10A, 10B -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 4, 17 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
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| - Definition
Derivative instrument obligations meeting the definition of a liability which the Company is a party to as of the balance sheet date.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 15 -Paragraph 83 -URI http://asc.fasb.org/extlink&oid=6913464&loc=d3e34841-113949Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 10 -Subparagraph i -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 6 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value as of the balance sheet date of the embedded derivative or group of embedded derivatives classified as a liability.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 12-16, 44A, 44B -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44A -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44A, 44B -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 133 -Paragraph 44B -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624163-113959
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of transfers of liabilities measured on a recurring basis out of Level 2 of the fair value hierarchy into Level 1.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the aggregate of the liabilities reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258
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