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Income Taxes - Additional Information (Detail) - USD ($) $ in Millions | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Unrecognized tax benefit | $ 46.0 | $ 115.0 | $ 127.0 | $ 128.0
Total uncertain tax position identified in foreign jurisdiction | 69.0 |  |  |
Uncertain tax position settled | 69.0 |  |  |
Increase in unrecognized tax benefits associated with potential transfer pricing adjustments | 14.0 |  |  |
Reduction in unrecognized tax position completion of audits in foreign jurisdictions | 75.0 |  |  |
Reduction in unrecognized tax benefit | 8.0 |  |  |
Decrease in unrecognized tax benefits | 152.0 |  |  |
Decrease of income tax expense in the current year | 14.0 |  |  |
Unrecognized tax benefits that would reduce income tax | 0.6 |  |  |
Accrued income tax interest and penalties related to unrecognized tax benefit | 3.8 |  |  |
Operating loss carry forward potential benefit | 170.0 | 118.0 | $ 51.0 |
Foreign tax credit | 166.0 |  |  |
Undistributed earnings of foreign subsidiaries | 8,187.0 | $ 5,874.0 |  |
Realized [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Unrecognized tax benefit | 46.0 |  |  |
Carry Forward Expiration Year 2020 [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 24.0 |  |  |
Carry Forward Expiration Year 2022 [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 142.0 |  |  |
Domestic Country [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 21.0 |  |  |
Operating loss carry forward potential benefit | 7.0 |  |  |
Operating loss carry forward valuation allowance | 5.0 |  |  |
Income tax interest and penalties related to unrecognized tax benefit | 5.0 |  |  |
Domestic Country [Member] | Carry Forward Expiration Year 2026 [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 1.0 |  |  |
Domestic Country [Member] | Carry Forward Expiration Year 2028 [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 1.0 |  |  |
Domestic Country [Member] | Carry Forward Expiration Year 2020 [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 5.0 |  |  |
Domestic Country [Member] | Carry Forward Expiration Year 2024 [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 1.0 |  |  |
Domestic Country [Member] | Carry Forward Expiration Year 2025 [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 13.0 |  |  |
Foreign Country [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 765.0 |  |  |
Operating loss carry forward potential benefit | 162.0 |  |  |
Operating loss carry forward valuation allowance | 58.0 |  |  |
Income tax interest and penalties related to unrecognized tax benefit | 58.0 |  |  |
Foreign Country [Member] | Carry Forward Expiration Year 2034 [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 4.0 |  |  |
Foreign Country [Member] | Carry Forward Expiration Year 2035 [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 43.0 |  |  |
Foreign Country [Member] | Carry Forward Expiration Year 2016 [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 9.0 |  |  |
Foreign Country [Member] | Carry Forward Expiration Year 2017 [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 34.0 |  |  |
Foreign Country [Member] | Carry Forward Expiration Year 2018 [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 31.0 |  |  |
Foreign Country [Member] | Carry Forward Expiration Year 2019 [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 5.0 |  |  |
Foreign Country [Member] | Carry Forward Expiration Year 2020 [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 20.0 |  |  |
Foreign Country [Member] | Carry Forward Expiration Year 2021 [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 20.0 |  |  |
Foreign Country [Member] | Carry Forward Expiration Year 2022 [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 6.0 |  |  |
Foreign Country [Member] | Carry Forward Expiration Year 2023 [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 9.0 |  |  |
Foreign Country [Member] | Carry Forward Expiration Year 2024 [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 208.0 |  |  |
Foreign Country [Member] | Carry Forward Expiration Year 2025 [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | 67.0 |  |  |
Foreign Country [Member] | Operating Loss Carry Forward Indefinitely [Member] |  |  |  |
Reconciliation Of Statutory Federal Tax Rate [Line Items] |  |  |  |
Net operating loss carry forward | $ 309.0 |  |  |

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