Income Taxes - Schedule of Provision for Income Taxes on Income from Continuing Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Current:
Federal	$ (2)	$ 0	$ 0
Foreign	2	86	68
State and local	(2)	0	0
Current provision for income taxes, total	(2)	86	68
Deferred:
Federal	(67)	33	100
Foreign	11	(41)	(53)
State and local	18	6	4
Deferred provision for income taxes, total	(38)	(2)	51
Total	$ (40)	$ 84	$ 119