Stockholders’ Equity - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	9 Months Ended	12 Months Ended
	Sep. 30, 2025	Dec. 31, 2024
2.5% 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)
Cross-currency interest rate swaps
Accumulated Other Comprehensive Income (Loss) [Line Items]
Foreign currency translation gains (losses), net of tax	(9)	19
Foreign currency translation gains (losses), before tax	$ (12)	$ 25