Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022
AOCI Attributable to Parent, Net of Tax
Balance at beginning of period	$ 6,798
Other comprehensive income, net of tax	12	$ (115)
Net other comprehensive income	12	(115)
Balance at end of period	3,883	12,552
Pension Plans | Pension Plans
AOCI Attributable to Parent, Net of Tax
Balance at beginning of period	21	3
Other comprehensive income, net of tax	0	0
Net other comprehensive income	0	0
Balance at end of period	21	3
Foreign Currency Translation Adjustment and Other
AOCI Attributable to Parent, Net of Tax
Balance at beginning of period	(365)	(354)
Other comprehensive income, net of tax	12	(115)
Net other comprehensive income	12	(115)
Balance at end of period	(353)	(469)
Total
AOCI Attributable to Parent, Net of Tax
Balance at beginning of period	(344)	(351)
Balance at end of period	$ (332)	$ (466)