Income Taxes (Benefit (Provision) for Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Current Federal	$ (6)	$ (5)	$ (6)
Current Foreign	(9)	(8)	(6)
Current State	2	(4)	(5)
Total current	(13)	(17)	(17)
Deferred Foreign	(3)	(4)	(3)
Total deferred	(3)	(4)	(3)
Benefit (provision) for income taxes	$ (16)	$ (21)	$ (20)