| **Debt (Details) ¥ in Millions**                                                          |                 | 1 Months Ended | 3 Months Ended    | 9 Months Ended    |              |                   |              |
|------------------------------------------------------------------------------------------------|-----------------|----------------|-------------------|-------------------|--------------|-------------------|--------------|
||
| Term Loan Due June 2015 | Loans Payable                                                        |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Debt instrument term                                                                           |            |           |              |              | 2 years      |              |         |   |   |
| Face amount of debt                                                                            |            |           |              |              |         |              |         | $ 500,000,000 |   |
| Term Loan Due August 2015 | Loans Payable                                                      |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Debt instrument term                                                                           |            |           |              |              | 364 days     |              |         |   |   |
| Face amount of debt                                                                            |            |           |              |              |         |              |         | $ 250,000,000 |   |
| Yen Denominated Credit Facilities, Renewed through March 2016 | Line of Credit                 |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Line of credit                                                                                 |            |           |              | $ 27,000,000      | ¥ 3,250 | $ 27,000,000      |         |   |   |
| Extension period                                                                               |            |           |              |              |         | 1 year            |         |   |   |
| Basis spread on variable rate                                                                  |            |           |              |              |         | 0.25%             |         |   |   |
| Yen Denominated Credit Facilities, Renewed through March 2016 | Line of Credit | Japan, Yen    |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Description of variable rate basis                                                             |            |           |              |              |         | Yen LIBOR         |         |   |   |
| Yen Denominated Credit Facilities, Renewed through June 2016 | Line of Credit                  |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Line of credit                                                                                 |            |           |              | $ 27,000,000      |         | $ 27,000,000      | ¥ 3,250 |   |   |
| Extension period                                                                               |            |           |              |              |         | 1 year            |         |   |   |
| Basis spread on variable rate                                                                  |            |           |              |              |         | 0.27%             |         |   |   |
| Yen Denominated Credit Facilities, Renewed through June 2016 | Line of Credit | Japan, Yen     |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Description of variable rate basis                                                             |            |           |              |              |         | Yen LIBOR         |         |   |   |
| Term loan due 2016 | Loans Payable                                                             |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Debt instrument term                                                                           |            |           |              | 364 days          |         |              |         |   |   |
| Face amount of debt                                                                            |            |           |              | $ 175,000,000     |         | $ 175,000,000     |         |   |   |
| Basis spread on variable rate                                                                  |            |           |              | 0.90%             |         |              |         |   |   |
| Term loan due 2016 | Loans Payable | LIBOR                                                     |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Description of variable rate basis                                                             |            |           |              | LIBOR             |         |              |         |   |   |
| Bridge Facility | Bridge Loan                                                                  |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Face amount of debt                                                                            |            |           |              | $ 3,700,000,000.0 |         | 3,700,000,000.0   |         |   |   |
| Amount outstanding                                                                             |            |           |              | 0                 |         | 0                 |         |   |   |
| Bridge Facility | Other (income) expense | Bridge Loan                                         |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Commitment fees                                                                                |            |           |              | 13,000,000        |         |              |         |   |   |
| Credit Facility Expiring 2020 | Revolving Credit Facility                                      |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Debt instrument term                                                                           |            |           | 5 years           |              |         |              |         |   |   |
| Amount outstanding                                                                             |            |           |              | 0                 |         | $ 0               |         |   |   |
| Maximum borrowing capacity                                                                     |            |           | $ 1,500,000,000.0 |              |         |              |         |   |   |
| Total debt to EDITDA, Initial                                                                  |            |           | 3.5               |              |         |              |         |   |   |
| Total debt to EDITDA                                                                           |            |           | 4.25              |              |         |              |         |   |   |
| Total debt to EDITDA, in year two                                                              |            |           | 4.0               |              |         |              |         |   |   |
| Total debt to EDITDA, thereafter                                                               |            |           | 3.5               |              |         |              |         |   |   |
| Credit Facility Expiring 2020 | Revolving Credit Facility | LIBOR                              |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Basis spread on variable rate                                                                  |            |           | 0.68%             |              |         |              |         |   |   |
| Credit Facility Expiring May 2018 | Revolving Credit Facility                                  |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Amount outstanding                                                                             |            |           |              |              |         |              |         |   | $ 0 |
| 2018 Senior Notes | Senior Notes                                                               |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Debt instrument term                                                                           |            | 3 years        |              |              |         |              |         |   |   |
| Face amount of debt                                                                            |            | $ 500,000,000  |              |              |         |              |         |   |   |
| Stated percentage                                                                              |            | 2.00%          |              |              |         |              |         |   |   |
| Effective interest rate                                                                        |            | 2.084%         |              |              |         |              |         |   |   |
| 2020 Senior Notes | Senior Notes                                                               |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Debt instrument term                                                                           |            | 5 years        |              |              |         |              |         |   |   |
| Face amount of debt                                                                            |            | $ 500,000,000  |              |              |         |              |         |   |   |
| Stated percentage                                                                              |            | 2.80%          |              |              |         |              |         |   |   |
| Effective interest rate                                                                        |            | 2.81%          |              |              |         |              |         |   |   |
| 2025 Senior Notes | Senior Notes                                                               |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Debt instrument term                                                                           |            | 10 years       |              |              |         |              |         |   |   |
| Face amount of debt                                                                            |            | $ 500,000,000  |              |              |         |              |         |   |   |
| Stated percentage                                                                              |            | 3.875%         |              |              |         |              |         |   |   |
| Effective interest rate                                                                        |            | 3.922%         |              |              |         |              |         |   |   |
| Term loan due August 2020 | Loans Payable                                                      |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Debt instrument term                                                                           |            |           |              |              |         | 5 years           |         |   |   |
| Face amount of debt                                                                            |            |           |              | 2,600,000,000.0   |         | $ 2,600,000,000.0 |         |   |   |
| Proceeds from issuance of debt                                                                 |            |           |              | $ 0               |         |              |         |   |   |
| Term loan due August 2020 | Loans Payable | Subsequent Event                                   |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Proceeds from issuance of debt                                                                 | $ 2,100,000,000 |           |              |              |         |              |         |   |   |
| Remaining borrowing capacity                                                                   | $ 500,000,000   |           |              |              |         |              |         |   |   |
| Periodic payment term                                                                          | 3 years         |           |              |              |         |              |         |   |   |
| Term loan due August 2020 | Loans Payable | LIBOR | Subsequent Event                           |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Basis spread on variable rate                                                                  | 1.125%          |           |              |              |         |              |         |   |   |
| Yen-denominated Senior Notes due 2017 | Senior Notes                                           |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Stated percentage                                                                              |            |           |              | 1.58%             |         | 1.58%             |         |   |   |
| Total debt to total capitalization ratio, initial                                              |            |           |              | 60.00%            |         | 60.00%            |         |   |   |
| Total debt to total capitalization ratio                                                       |            |           |              | 65.00%            |         | 65.00%            |         |   |   |
| Yen-denominated Senior Notes due 2020 | Senior Notes                                           |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Stated percentage                                                                              |            |           |              | 2.04%             |         | 2.04%             |         |   |   |
| Total debt to total capitalization ratio, initial                                              |            |           |              | 60.00%            |         | 60.00%            |         |   |   |
| Total debt to total capitalization ratio                                                       |            |           |              | 65.00%            |         | 65.00%            |         |   |   |
| Minimum | Credit Facility Expiring 2020 | Revolving Credit Facility | LIBOR | Subsequent Event |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Basis spread on variable rate                                                                  | 0.68%           |           |              |              |         |              |         |   |   |
| Maximum | Credit Facility Expiring 2020 | Revolving Credit Facility | LIBOR | Subsequent Event |            |           |              |              |         |              |         |   |   |
| **Debt Instrument**                                                                            |            |           |              |              |         |              |         |   |   |
| Basis spread on variable rate                                                                  | 0.90%           |           |              |              |         |              |         |   |   |

| X                                                                                                                                                                                                                                                                                                                   |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
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Debt Instrument, Automatic Extension Period at the election of the Company
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No definition available.
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| X                                                                                                                                                                                                                                                                                    |
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Debt Instrument, Covenant, Debt to Capitalization Ratio
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No definition available.
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| - Definition
Debt Instrument, Covenant, Earnings Before Interest, Income Taxes, Depreciation and Amortization, In Current Fiscal Year
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No definition available.
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| - Definition
Debt Instrument, Covenant, Earnings Before Interest, Income Taxes, Depreciation and Amortization, In Year Two
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No definition available.
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| - Definition
Debt Instrument, Covenant, Earnings Before Interest, Income Taxes, Depreciation and Amortization, Thereafter
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| - Definition
Debt Instrument, Covenant, Initial, Debt to Capitalization Ratio
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No definition available.
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Debt Instrument, Covenant, Initial, Earnings Before Interest, Income Taxes, Depreciation and Amortization
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No definition available.
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| - Definition
Debt Instrument, Periodic Payment Term
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No definition available.
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| X                                                                                                                                                                                                                                                                                                                                 |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Percentage points added to the reference rate to compute the variable rate on the debt instrument.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.
+ References
No definition available.
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Face (par) amount of debt instrument at time of issuance.
+ References
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.
+ References
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Contractual interest rate for funds borrowed, under the debt agreement.
+ References
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| - Definition
Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.
+ References
No definition available.
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| - Definition
Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.
+ References
No definition available.
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of the fee for available but unused credit capacity under the credit facility.
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Fair value of the amount outstanding under the credit facility.
+ References
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.
+ References
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.
+ References
No definition available.
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