Long-term Corporate Debt and Borrowing Arrangements - Schedule of Long-Term Debt (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2026	Dec. 31, 2025
Debt Instrument [Line Items]
Other	$ 37	$ 45
Deferred financing fees	(52)	(56)
Total	6,044	6,073
Less: Short-term debt and current portion of long-term debt	23	24
Long-term debt	$ 6,021	6,049
5.750% Senior Notes | Senior Notes
Debt Instrument [Line Items]
Debt instrument stated interest percentage	5.75%
Long-term debt	$ 645	645
4.750% Senior Notes | Senior Notes
Debt Instrument [Line Items]
Debt instrument stated interest percentage	4.75%
Long-term debt	$ 500	500
7.000% euro-denominated Senior Notes | Senior Notes
Debt Instrument [Line Items]
Debt instrument stated interest percentage	7.00%
Long-term debt	$ 693	705
5.375% Senior Notes | Senior Notes
Debt Instrument [Line Items]
Debt instrument stated interest percentage	5.375%
Long-term debt	$ 600	600
8.250% Senior Notes | Senior Notes
Debt Instrument [Line Items]
Debt instrument stated interest percentage	8.25%
Long-term debt	$ 700	700
7.250% euro-denominated Senior Notes | Senior Notes
Debt Instrument [Line Items]
Debt instrument stated interest percentage	7.25%
Long-term debt	$ 694	705
8.000% Senior Notes | Senior Notes
Debt Instrument [Line Items]
Debt instrument stated interest percentage	8.00%
Long-term debt	$ 498	498
8.375% Senior Notes | Senior Notes
Debt Instrument [Line Items]
Debt instrument stated interest percentage	8.375%
Long-term debt	$ 600	600
Floating Rate Term Loan | Loans Payable
Debt Instrument [Line Items]
Long-term debt	$ 1,129	$ 1,131
Debt instrument, variable interest rate, type [extensible enumeration]	Secured Overnight Financing Rate (SOFR) [Member]
Basis spread on variable rate	2.50%
Aggregate interest rate	6.17%
Amount of hedged item	$ 750
Aggregate rate	4.01%