Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income	$ 163	$ 313	$ 245
Other comprehensive income (loss), net of tax
Currency translation adjustments, net of tax of $(9), $(22) and $(30), respectively	41	(131)	(115)
Available-for-sale securities:
Net unrealized gains (losses) on available-for-sale securities, net of tax of $(1), $1,and $0, respectively	1	(2)	0
Cash flow hedges:
Net unrealized holding gains (losses), net of tax of $(1), $4, and $4, respectively.	0	(6)	(7)
Less: Cash flow hedges reclassified to earnings, net of tax of $(2), $(3) and $(3), respectively	4	5	5
Minimum pension liability adjustment:
Pension and post-retirement benefits, net of tax of $21, $(1) and $25, respectively.	(57)	6	(24)
Less: Pension and post-retirement benefits reclassified to earnings, net of tax of $(2), $(2) and $(1), respectively	4	3	2
Other comprehensive income (loss)	(7)	(125)	(139)
Total comprehensive income	$ 156	$ 188	$ 106