Notional Amount of Currency Forward Contracts Designated and Undesignated as Cash Flow Hedges (Detail) (USD $) In Millions, unless otherwise specified			3 Months Ended
	Mar. 31, 2012	Dec. 31, 2011	Mar. 31, 2012 U.S. dollar	Mar. 31, 2012 Euro	Mar. 31, 2012 British pound	Mar. 31, 2012 Swedish krona	Mar. 31, 2012 Australian dollar	Mar. 31, 2012 Indian rupee	Mar. 31, 2012 Other
Fair Value Measurements [Line Items]
Traded Currency			Mexican peso	U.S. dollar, Canadian dollar, Hungarian forint, Japanese yen	U.S. dollar, Euro	Euro	U.S. dollar	U.S. dollar, British pound, Euro	Various
Notional Amount Cash Flow Hedges	$ 155		$ 90	$ 26	$ 13	$ 12	$ 8		$ 6
Notional Amount Undesignated	22			5				16	1
Total	$ 177	$ 213	$ 90	$ 31	$ 13	$ 12	$ 8	$ 16	$ 7
Maturity			2013-03	2012-12	2012-12	2012-12	2012-12	2012-12	2012-12