| **Employee Benefit Plans - Schedule of Benefit Obligation and Plan Assets (Details) (USD $)In Millions, unless otherwise specified** | 12 Months Ended                                                                                                                                                                                               |
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| United States Pension Plan of US Entity [Member]                                                                                     |                                                                                                                                                                                                          |   |   |
| **Change in benefit obligation:**                                                                                                    |                                                                                                                                                                                                          |   |   |
| Benefit obligation at beginning of year                                                                                              | $ 649us-gaap_DefinedBenefitPlanBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember                               | $ 589us-gaap_DefinedBenefitPlanBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |   |
| Service cost                                                                                                                         | 70us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember                                        | 65us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember | 63us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |
| Interest cost                                                                                                                        | 28us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember                                       | 21us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember | 21us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |
| Actuarial loss (gain)                                                                                                                | 21us-gaap_DefinedBenefitPlanActuarialGainLoss/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember                                  | 2us-gaap_DefinedBenefitPlanActuarialGainLoss/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |   |
| Benefits paid                                                                                                                        | (35)us-gaap_DefinedBenefitPlanBenefitsPaid/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember                                     | (24)us-gaap_DefinedBenefitPlanBenefitsPaid/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |   |
| Plan amendments                                                                                                                      | 0us-gaap_DefinedBenefitPlanPlanAmendments/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember                                      | 0us-gaap_DefinedBenefitPlanPlanAmendments/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |   |
| Other                                                                                                                                | (5)us-gaap_DefinedBenefitPlanOtherChanges/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember                                      | (4)us-gaap_DefinedBenefitPlanOtherChanges/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |   |
| Foreign currency translation adjustments                                                                                             | 0us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember | 0us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |   |
| Benefit obligation at end of year                                                                                                    | 728us-gaap_DefinedBenefitPlanBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember                                 | 649us-gaap_DefinedBenefitPlanBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember | 589us-gaap_DefinedBenefitPlanBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |
| **Change in plan assets:**                                                                                                           |                                                                                                                                                                                                          |   |   |
| Fair value of plan assets at beginning of year                                                                                       | 617us-gaap_DefinedBenefitPlanFairValueOfPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember                             | 524us-gaap_DefinedBenefitPlanFairValueOfPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |   |
| Actual return on plan assets                                                                                                         | 39us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember                           | 78us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |   |
| Employer contributions                                                                                                               | 32us-gaap_DefinedBenefitPlanContributionsByEmployer/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember                            | 43us-gaap_DefinedBenefitPlanContributionsByEmployer/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |   |
| Benefits paid                                                                                                                        | (35)us-gaap_DefinedBenefitPlanBenefitsPaid/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember                                     | (24)us-gaap_DefinedBenefitPlanBenefitsPaid/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |   |
| Other                                                                                                                                | (5)us-gaap_DefinedBenefitPlanOtherCosts/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember                                        | (4)us-gaap_DefinedBenefitPlanOtherCosts/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |   |
| Foreign currency translation adjustments                                                                                             | 0us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember        | 0us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |   |
| Fair value of plan assets at end of year                                                                                             | 648us-gaap_DefinedBenefitPlanFairValueOfPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember                             | 617us-gaap_DefinedBenefitPlanFairValueOfPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember | 524us-gaap_DefinedBenefitPlanFairValueOfPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |
| Funded status - underfunded at end of year                                                                                           | (80)us-gaap_DefinedBenefitPlanFundedStatusOfPlan/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember                               | (32)us-gaap_DefinedBenefitPlanFundedStatusOfPlan/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |   |
| Accumulated benefit obligation                                                                                                       | 662us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember                      | 599us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember |   |
| Foreign Pension Plan [Member]                                                                                                        |                                                                                                                                                                                                          |   |   |
| **Change in benefit obligation:**                                                                                                    |                                                                                                                                                                                                          |   |   |
| Benefit obligation at beginning of year                                                                                              | 799us-gaap_DefinedBenefitPlanBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember                                                | 740us-gaap_DefinedBenefitPlanBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember |   |
| Service cost                                                                                                                         | 11us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember                                                       | 12us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember | 8us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember |
| Interest cost                                                                                                                        | 34us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember                                                      | 31us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember | 32us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember |
| Actuarial loss (gain)                                                                                                                | 120us-gaap_DefinedBenefitPlanActuarialGainLoss/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember                                                | 36us-gaap_DefinedBenefitPlanActuarialGainLoss/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember |   |
| Benefits paid                                                                                                                        | (29)us-gaap_DefinedBenefitPlanBenefitsPaid/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember                                                    | (24)us-gaap_DefinedBenefitPlanBenefitsPaid/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember |   |
| Plan amendments                                                                                                                      | 0us-gaap_DefinedBenefitPlanPlanAmendments/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember                                                     | 0us-gaap_DefinedBenefitPlanPlanAmendments/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember |   |
| Other                                                                                                                                | (3)us-gaap_DefinedBenefitPlanOtherChanges/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember                                                     | (3)us-gaap_DefinedBenefitPlanOtherChanges/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember |   |
| Foreign currency translation adjustments                                                                                             | (60)us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember             | 7us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember |   |
| Benefit obligation at end of year                                                                                                    | 872us-gaap_DefinedBenefitPlanBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember                                                | 799us-gaap_DefinedBenefitPlanBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember | 740us-gaap_DefinedBenefitPlanBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember |
| **Change in plan assets:**                                                                                                           |                                                                                                                                                                                                          |   |   |
| Fair value of plan assets at beginning of year                                                                                       | 645us-gaap_DefinedBenefitPlanFairValueOfPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember                                            | 592us-gaap_DefinedBenefitPlanFairValueOfPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember |   |
| Actual return on plan assets                                                                                                         | 122us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember                                         | 52us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember |   |
| Employer contributions                                                                                                               | 78us-gaap_DefinedBenefitPlanContributionsByEmployer/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember                                           | 18us-gaap_DefinedBenefitPlanContributionsByEmployer/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember |   |
| Benefits paid                                                                                                                        | (29)us-gaap_DefinedBenefitPlanBenefitsPaid/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember                                                    | (24)us-gaap_DefinedBenefitPlanBenefitsPaid/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember |   |
| Other                                                                                                                                | 0us-gaap_DefinedBenefitPlanOtherCosts/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember                                                         | (2)us-gaap_DefinedBenefitPlanOtherCosts/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember |   |
| Foreign currency translation adjustments                                                                                             | (49)us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember                    | 9us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember |   |
| Fair value of plan assets at end of year                                                                                             | 767us-gaap_DefinedBenefitPlanFairValueOfPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember                                            | 645us-gaap_DefinedBenefitPlanFairValueOfPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember | 592us-gaap_DefinedBenefitPlanFairValueOfPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember |
| Funded status - underfunded at end of year                                                                                           | (105)us-gaap_DefinedBenefitPlanFundedStatusOfPlan/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember                                             | (154)us-gaap_DefinedBenefitPlanFundedStatusOfPlan/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember |   |
| Accumulated benefit obligation                                                                                                       | 832us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember                                     | 767us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_ForeignPensionPlansDefinedBenefitMember |   |
| Other Postretirement Benefits                                                                                                        |                                                                                                                                                                                                          |   |   |
| **Change in benefit obligation:**                                                                                                    |                                                                                                                                                                                                          |   |   |
| Benefit obligation at beginning of year                                                                                              | 128us-gaap_DefinedBenefitPlanBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                                    | 148us-gaap_DefinedBenefitPlanBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |   |
| Service cost                                                                                                                         | 6us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                                            | 6us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 13us-gaap_DefinedBenefitPlanServiceCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
| Interest cost                                                                                                                        | 5us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                                           | 5us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 7us-gaap_DefinedBenefitPlanInterestCost/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
| Actuarial loss (gain)                                                                                                                | 1us-gaap_DefinedBenefitPlanActuarialGainLoss/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                                      | (22)us-gaap_DefinedBenefitPlanActuarialGainLoss/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |   |
| Benefits paid                                                                                                                        | (7)us-gaap_DefinedBenefitPlanBenefitsPaid/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                                         | (9)us-gaap_DefinedBenefitPlanBenefitsPaid/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |   |
| Plan amendments                                                                                                                      | (11)us-gaap_DefinedBenefitPlanPlanAmendments/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                                      | 0us-gaap_DefinedBenefitPlanPlanAmendments/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |   |
| Other                                                                                                                                | 0us-gaap_DefinedBenefitPlanOtherChanges/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                                           | 0us-gaap_DefinedBenefitPlanOtherChanges/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |   |
| Foreign currency translation adjustments                                                                                             | 0us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember    | 0us-gaap_DefinedBenefitPlanForeignCurrencyExchangeRateChangesBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |   |
| Benefit obligation at end of year                                                                                                    | 122us-gaap_DefinedBenefitPlanBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                                    | 128us-gaap_DefinedBenefitPlanBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 148us-gaap_DefinedBenefitPlanBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
| **Change in plan assets:**                                                                                                           |                                                                                                                                                                                                          |   |   |
| Fair value of plan assets at beginning of year                                                                                       | 0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                                  | 0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |   |
| Actual return on plan assets                                                                                                         | 0us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                               | 0us-gaap_DefinedBenefitPlanActualReturnOnPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |   |
| Employer contributions                                                                                                               | 7us-gaap_DefinedBenefitPlanContributionsByEmployer/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                                | 9us-gaap_DefinedBenefitPlanContributionsByEmployer/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |   |
| Benefits paid                                                                                                                        | (7)us-gaap_DefinedBenefitPlanBenefitsPaid/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                                         | (9)us-gaap_DefinedBenefitPlanBenefitsPaid/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |   |
| Other                                                                                                                                | 0us-gaap_DefinedBenefitPlanOtherCosts/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                                             | 0us-gaap_DefinedBenefitPlanOtherCosts/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |   |
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| Fair value of plan assets at end of year                                                                                             | 0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                                  | 0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember | 0us-gaap_DefinedBenefitPlanFairValueOfPlanAssets/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |
| Funded status - underfunded at end of year                                                                                           | (122)us-gaap_DefinedBenefitPlanFundedStatusOfPlan/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                                 | (128)us-gaap_DefinedBenefitPlanFundedStatusOfPlan/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |   |
| Accumulated benefit obligation                                                                                                       | $ 122us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember                       | $ 128us-gaap_DefinedBenefitPlanAccumulatedBenefitObligation/ us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis= us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember |   |

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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
For defined benefit pension plans, the actuarial present value of benefits (whether vested or nonvested) attributed by the pension benefit formula to employee service rendered before a specified date and based on employee service and compensation (if applicable) before that date. The accumulated benefit obligation differs from the projected benefit obligation in that it includes no assumption about future compensation levels. For plans with flat-benefit or nonpay-related pension benefit formulas, the accumulated benefit obligation and the projected benefit obligation are the same.
+ References
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The difference between fair value of plan assets at the end of the period and the fair value at the beginning of the period, adjusted for contributions and payments of benefits during the period, and after adjusting for taxes and other expenses, as applicable.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Actual Return on Plan Assets (Component of Net Periodic Postretirement Benefit Cost) -URI http://asc.fasb.org/extlink&oid=6504192Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Actual Return on Plan Assets (Component of Net Periodic Pension Cost) -URI http://asc.fasb.org/extlink&oid=6504226
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of gain (loss) related to change in benefit obligation resulting from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover, salary, and temporary deviation from the substantive plan.
+ References
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date.  2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.
+ References
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The increase in the fair value of plan assets from contributions made by the employer.
+ References
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.
+ References
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount of gain (loss) from foreign currency exchange rate changes for benefit obligation for plans of a foreign operation whose functional currency is not the reporting currency.
+ References
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of increase or decrease in plan assets attributed to foreign currency changes. The effects of foreign currency exchange rate changes that are to be disclosed are those applicable to plans of a foreign operation whose functional currency is not the reporting currency.
+ References
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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The funded status is measured as the difference between the fair value of plan assets and the benefit obligation. Will normally be the same as the net Defined Benefit Plan, Amounts Recognized in Balance Sheet, Total.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Changes in the defined benefit obligation, not otherwise separately disclosed in the financial statements.
+ References
No definition available.
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| - Definition
Amount of other defined benefit plan costs.
+ References
No definition available.
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount of increase or decrease due to a change in the terms of an existing plan or the initiation of a new plan. A plan amendment may increase or decrease benefits, including those attributed to years of service already rendered.
+ References
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.
+ References
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