Accumulated Comprehensive Loss (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Beginning Balance	$ (78)	$ (181)	$ (99)	$ (174)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	0	3	4	6
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(19)	(13)	(3)	(22)
Ending Balance	(98)	(190)	(98)	(190)
Pension
Beginning Balance	0	(74)	(5)	(76)
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax	0	3	4	6
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	3	4	6
Ending Balance	0	(71)	0	(71)
Translation Adjustments
Beginning Balance	(78)	(105)	(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	(19)	(13)	(3)	(22)
Ending Balance	(97)	(118)	(97)	(118)
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	(78)	(181)	(99)	(174)
Ending Balance	$ (98)	$ (190)	$ (98)	$ (190)