Consolidated Statements of Comprehensive Income (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Net income	$ 460	$ 457	$ 384
Other comprehensive income, net of tax:
Foreign currency translation adjustments	23	(39)	10
Pension and post retirement	10	(22)	(4)
Unrealized gains (losses) on securities, net	3	(4)	5
Unrealized gains on forward exchange contracts, net	3	0	0
Total other comprehensive income, net of tax	39	(65)	11
Comprehensive income	$ 499	$ 392	$ 395