Income Taxes - Schedule of Provision for Income Taxes on Income from Continuing Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Current:
Federal	$ 4	$ 45	$ 0
Foreign	108	138	98
State and local	5	4	(2)
Current provision for income taxes, total	117	187	96
Deferred:
Federal	65	146	489
Foreign	(53)	(94)	37
State and local	(24)	(13)	(78)
Deferred provision for income taxes, total	(12)	39	448
Total	$ 105	$ 226	$ 544