Accumulated Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Beginning Balance	$ (80)	$ (149)	$ (99)	$ (174)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	0	1	4	2
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	1	(32)	16	(9)
Ending Balance	(78)	(181)	(78)	(181)
Pension
Beginning Balance	0	(75)	(5)	(76)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	0	1	4	2
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	0	0	0	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	1	4	2
Ending Balance	0	(74)	0	(74)
Translation Adjustments
Beginning Balance	(79)	(73)	(94)	(96)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	0	0	0	0
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	1	(32)	16	(9)
Ending Balance	(78)	(105)	(78)	(105)
Other
Beginning Balance	0	(1)	0	(1)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	0	0	0	0
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	0	0	0	0
Ending Balance	0	(1)	0	(1)
AOCI Attributable to Parent [Member]
Beginning Balance	(80)	(149)	(99)	(174)
Ending Balance	$ (78)	$ (181)	$ (78)	$ (181)