Income and Other Taxes - Income Tax Expense (Benefit), Current Deferred, by Jurisdiction (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Current federal tax expense (benefit)	$ 33	$ 3	$ (3)
Deferred federal income tax expense (benefit)	(61)	58	98
Current foreign tax expense	29	19	43
Deferred foreign income tax expense (benefit)	(20)	(34)	5
Current state tax expense	10	8	15
Deferred state income tax (benefit) expense	(8)	10	21
Income Tax (Benefit) Expense	$ (17)	$ 64	$ 179