Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net Income	$ 95	$ 128
Other Comprehensive Income, net of Tax:
Foreign currency translation adjustments, net of tax effect of ($8) and $8	20	48
Defined benefit pension plan adjustments, net of tax effect of $0 and ($2)	1	(3)
Other Comprehensive Income, net of Tax	21	45
Comprehensive Income	$ 116	$ 173