Other Non-Operating Income, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Other Income and Expenses [Abstract]
Interest income	$ 5	$ 4	$ 3
Income from joint ventures	3	5	3
Other income (expense) - net	(12)	4	0
Total other non-operating (expense) income, net	$ (4)	$ 13	$ 6