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Long-Term Debt And Borrowing Arrangements - Additional Information (Detail) € in Millions | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Dec. 31, 2013 USD ($) | Dec. 31, 2020 EUR (€) | Sep. 30, 2020 USD ($) | Aug. 31, 2020 USD ($) | Sep. 30, 2019 USD ($) | Dec. 31, 2017 USD ($) | Dec. 31, 2014 USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Document Period End Date | Dec. 31, 2020 |  |  |  |  |  |  |  |  |
Gain (Loss) on Extinguishment of Debt | $ (9,000,000) | $ (12,000,000) | $ (19,000,000) |  |  |  |  |  |  |
Loans Payable [Member] | Floating Rate Term Loan Due March Two Thousand Twenty Five [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, Fixed Interest Rate | 2.25% |  |  |  | 2.25% |  |  |  |  |
Debt Instrument, Face Amount | $ 1,200,000,000 |  |  |  |  |  |  |  |  |
Percentage Of Margin Aggregate Interest Rate | 2.40% |  |  |  |  |  |  |  |  |
Senior Notes [Member] | Four and three over four Euro-Denominated Senior Notes [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | € |  |  |  |  | € 350 |  |  |  |  |
Senior Notes [Member] | Five And One Over Four Senior Notes [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  |  |  |  |  |  |  |  | $ 375,000,000 |
Senior Notes [Member] | 5 1/2% Senior Notes |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | $ 200,000,000 | 475,000,000 |  |  |  |  | $ 100,000,000 | $ 400,000,000 |  | $ 175,000,000
Debt Instrument, Repurchase Amount | 202,000,000 |  |  |  |  |  |  | $ 483,000,000 |  |
Proceeds from Issuance of Senior Long-term Debt |  |  |  | $ 500,000,000 |  |  |  |  |  |
Senior Notes [Member] | Five and One over Eight Senior Notes [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Repurchase Amount | € |  |  |  |  | € 410 |  |  |  |  |
Senior Notes [Member] | Five and Three over Four Senior Note [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount |  | $ 400,000,000 |  |  |  | $ 350,000,000 |  |  |  |
Senior Notes [Member] | Ten And One Over Two Senior Notes [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Debt Instrument, Face Amount | $ 500,000,000 |  |  |  |  |  |  |  |  |
Interest Rate Swap [Member] | Loans Payable [Member] | Floating Rate Term Loan Due March Two Thousand Twenty Five [Member] |  |  |  |  |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |
Derivative, Fixed Interest Rate | 4.58% |  |  |  | 4.58% |  |  |  |  |

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