Other Income (Expense), Net (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Other Income and Expenses [Abstract]
Income from cash and cash investments and short-term bank deposits	$ 1	$ 1
Equity investment income, net	0	1
Realized gains from private equity funds	1	0
Foreign currency transaction gains	1	0
Other items, net	0	(3)
Total other, net	$ 3	$ (1)