Derivative and Other Hedging Financial Instruments - Additional Information (Detail) In Millions, unless otherwise specified	6 Months Ended			6 Months Ended				6 Months Ended			6 Months Ended
	Jun. 30, 2012 USD ($)	Jun. 30, 2012 7 1/2% Senior Subordinated Notes Due 2020	Dec. 31, 2011 7 1/2% Senior Subordinated Notes Due 2020	Jun. 30, 2012 Net Investment Hedging USD ($)	Jun. 30, 2012 Net Investment Hedging 7 1/2% Senior Subordinated Notes Due 2020 EUR (€)	Jun. 30, 2012 Swap Cash Flow Hedging USD ($)	Jun. 30, 2012 Forward-Starting Swaps Effective Commencing December 31, 2013 USD ($)	Jun. 30, 2012 Forward-Starting Swaps Cash Flow Hedging	Jun. 30, 2012 Forward-Starting Swaps Cash Flow Hedging Effective Commencing December 31, 2013	Jun. 30, 2012 Foreign Exchange Contract USD ($)	Jun. 30, 2012 Foreign Exchange Contract Derivatives Not Designated As Effective Hedges	Jun. 30, 2012 Foreign Exchange Contract Cash Flow Hedging	Jun. 30, 2012 Commodity Contract USD ($)
Derivative [Line Items]
Notional amount outstanding in swap agreements, cash flow hedges						$ 750	$ 350
Effective date of swap agreement								2013-12-31
Derivative maturity date									2015-12		2013-12	2014-01	2014-03
Weighted average fixed rate of interest swaps						1.60%
Notional amount of foreign currency contracts designated as cash flow hedges										418
Notional amount of foreign currency contracts not designated as effective hedges										209
Notional amount of commodity-based derivatives not designated as effective hedges													12
Deferred net gains within AOCI expected to be reclassified to earnings over the next twelve months	9
Interest rate of debt instrument		7.50%	7.50%		7.50%
Debt instrument maturity year		2020	2020		2020
Aggregate principal amount					150
Deferred gains on net investment hedge recorded in AOCI				$ 3.6