Other Non-Operating Income (Expense), Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Other Income and Expenses [Abstract]
Interest income	$ 2	$ 2	$ 2
Income from joint ventures	3	3	2
Other income (expense) - net	(1)	(5)	(3)
Total other non-operating income (expense), net	$ 4	$ 0	$ 1