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Debt - Estimated Fair Values of Senior Debt Issues (Details) € in Millions, $ in Millions | Dec. 31, 2024 USD ($) | Dec. 31, 2024 EUR (€) | Nov. 27, 2024 USD ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2023 EUR (€) | Aug. 18, 2021 USD ($)
--- | --- | --- | --- | --- | --- | ---
Debt Instrument [Line Items] |  |  |  |  |  |
Less: Unamortized issue discounts | $ (19) |  |  | $ (25) |  |
Less: Unamortized debt issuance costs | (24) |  |  | (21) |  |
Senior Secured Tranche B-3 U.S Dollar Term Loan Due August 2028 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, Carrying Value | 1,056 |  |  | 1,067 |  |
Senior Secured Tranche B-3 Euro Term Loan Due August 2028 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, Carrying Value | 432 | € 415 |  | 457 | € 415 |
4.000% Senior Unsecured Notes Due May 2026 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, Carrying Value | 0 | € 0 |  | 485 | € 441 |
5.375% Senior Unsecured Notes Due May 2027 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, Carrying Value | 495 |  |  | 495 |  |
5.750% Senior Unsecured Notes Due November 2028 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, Carrying Value | 783 |  |  | 783 |  |
4.625% Senior Unsecured Notes Due November 2029 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, Carrying Value | 620 |  |  | 620 |  | $ 650
8.000% Senior Unsecured Notes Due January 2033 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, Carrying Value | 600 |  | $ 600 |  |  |
Level 2 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, Carrying Value | 3,986 |  |  | 3,907 |  |
Long-term debt, Fair Value | 3,834 |  |  | 3,776 |  |
Total senior debt, Carrying Value | 3,986 |  |  | 3,907 |  |
Less: Unamortized issue discounts | (19) |  |  | (25) |  |
Less: Unamortized debt issuance costs | (24) |  |  | (21) |  |
Total principal maturities on debt | 3,943 |  |  | 3,861 |  |
Total senior debt, Fair Value | 3,834 |  |  | 3,776 |  |
Level 2 [Member] | Senior Secured Tranche B-3 U.S Dollar Term Loan Due August 2028 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, Carrying Value | 1,056 |  |  | 1,067 |  |
Long-term debt, Fair Value | 1,065 |  |  | 1,068 |  |
Level 2 [Member] | Senior Secured Tranche B-3 Euro Term Loan Due August 2028 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, Carrying Value | 432 |  |  | 457 |  |
Long-term debt, Fair Value | 439 |  |  | 451 |  |
Level 2 [Member] | 4.000% Senior Unsecured Notes Due May 2026 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, Carrying Value |  |  |  | 485 |  |
Long-term debt, Fair Value |  |  |  | 480 |  |
Level 2 [Member] | 5.375% Senior Unsecured Notes Due May 2027 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, Carrying Value | 495 |  |  | 495 |  |
Long-term debt, Fair Value | 477 |  |  | 485 |  |
Level 2 [Member] | 5.750% Senior Unsecured Notes Due November 2028 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, Carrying Value | 783 |  |  | 783 |  |
Long-term debt, Fair Value | 728 |  |  | 745 |  |
Level 2 [Member] | 4.625% Senior Unsecured Notes Due November 2029 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, Carrying Value | 620 |  |  | 620 |  |
Long-term debt, Fair Value | 538 |  |  | $ 547 |  |
Level 2 [Member] | 8.000% Senior Unsecured Notes Due January 2033 [Member] |  |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |  |
Long-term debt, Carrying Value | 600 |  |  |  |  |
Long-term debt, Fair Value | $ 587 |  |  |  |  |

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