Draws on Credit Facility that are Designated as Net Investments in Foreign Operations (Detail) In Millions, unless otherwise specified	3 Months Ended								3 Months Ended
	Mar. 31, 2014 USD ($)	Mar. 31, 2013 USD ($)	Mar. 31, 2014 Canadian Dollars USD ($)		Mar. 31, 2013 Canadian Dollars USD ($)		Mar. 31, 2014 Canadian Dollars CAD		Mar. 31, 2014 Euros USD ($)	Mar. 31, 2013 Euros USD ($)	Mar. 31, 2014 Euros EUR (€)
Debt Instrument Designated As Hedges Of Net Investment In Foreign Operations [Line Items]
Balance Outstanding			$ 28	[1]			31	[1]	$ 102		€ 74
Foreign currency translation and other comprehensive income (loss) of unconsolidated affiliates	$ 7	$ (3)	$ 1	[1]	$ 1	[1]			$ 0	$ 1

[1] We have an additional $69 million outstanding on the credit facility in Canadian dollars that has not been designated as a hedging instrument.