Income Taxes (Benefit (Provision) for Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Current Federal	$ (5)	$ (6)	$ (6)
Current Foreign	(8)	(6)	(8)
Current State	(4)	(5)	(5)
Total current	(17)	(17)	(19)
Deferred Foreign	(4)	(3)	(2)
Total deferred	(4)	(3)	(2)
Benefit (provision) for income taxes	$ (21)	$ (20)	$ (21)

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

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Amount of current foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.

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Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

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Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

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Amount of deferred foreign income tax expense (benefit) pertaining to income (loss) from continuing operations.

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