Shareholders' Equity Changes in Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	$ (22)	$ (35)
Other comprehensive (loss) income before reclassifications	(6)	13
Ending balance	(28)	(22)
Foreign Currency Translation
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	(41)	(36)
Other comprehensive (loss) income before reclassifications	(2)
Ending balance	(43)	(41)
Defined Benefit Pension
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning balance	19	1
Other comprehensive (loss) income before reclassifications	(4)
Ending balance	$ 15	$ 19