Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
AOCI Attributable to Parent, Net of Tax
Balance at beginning of period	$ 3,616
Other comprehensive income (loss), net of tax	3	$ (2)
Net other comprehensive income (loss)	3	(2)
Balance at end of period	1,852	3,549
Pension Plans
AOCI Attributable to Parent, Net of Tax
Balance at beginning of period	(1)	21
Other comprehensive income (loss), net of tax	0	0
Net other comprehensive income (loss)	0	0
Balance at end of period	(1)	21
Foreign Currency Translation Adjustment and Other
AOCI Attributable to Parent, Net of Tax
Balance at beginning of period	(27)	(365)
Other comprehensive income (loss), net of tax	3	(2)
Net other comprehensive income (loss)	3	(2)
Balance at end of period	(24)	(367)
Total
AOCI Attributable to Parent, Net of Tax
Balance at beginning of period	(28)	(344)
Balance at end of period	$ (25)	$ (346)