Debt - Estimated Fair Values of Senior Debt Issues (Details) € in Millions, $ in Millions	Jun. 30, 2024 USD ($)	Jun. 30, 2024 EUR (€)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 EUR (€)
Debt Instrument [Line Items]
Less: Unamortized issue discounts	$ (22)		$ (25)
Less: Unamortized debt issuance costs	(18)		(21)
Senior Secured Tranche B-3 Euro Term Loan Due August 2028 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	444	€ 415	457	€ 415
Senior Secured Tranche B-3 U.S Dollar Term Loan Due August 2028 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	1,062		1,067
4.000% Senior Unsecured Notes Due May 2026 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	471	€ 441	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
Level 2 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	3,875		3,907
Long-term debt, Fair Value	3,687		3,776
Total senior debt, Carrying Value	3,875		3,907
Less: Unamortized issue discounts	(22)		(25)
Less: Unamortized debt issuance costs	(18)		(21)
Total principal maturities on debt	3,835		3,861
Total senior debt, Carrying Value	3,875		3,907
Total senior debt, Fair Value	3,687		3,776
Level 2 [Member] | Senior Secured Tranche B-3 Euro Term Loan Due August 2028 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	444		457
Long-term debt, Fair Value	446		451
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	1,062		1,067
Long-term debt, Fair Value	1,059		1,068
Level 2 [Member] | 4.000% Senior Unsecured Notes Due May 2026 [Member]
Debt Instrument [Line Items]
Long-term debt, Carrying Value	471		485
Long-term debt, Fair Value	457		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	469		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	722		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	$ 534		$ 547