Capital Stock - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Cross-currency interest rate swaps
Accumulated Other Comprehensive Income (Loss) [Line Items]
Foreign currency translation gains (losses), net of tax	$ 19	$ 6
Foreign currency translation gains (losses), before tax	25	8
2.5% (€650 million) Senior Notes Due 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Foreign currency translation gains (losses), net of tax	(7)	(7)
Foreign currency translation gains (losses), before tax	$ (10)	$ (10)