Derivative and Other Hedging Financial Instruments - Additional Information (Detail) In Millions, unless otherwise specified	3 Months Ended				3 Months Ended		3 Months Ended
	Mar. 31, 2013 USD ($)	Mar. 31, 2013 7 1/2% Senior Subordinated Notes Due 2020	Dec. 31, 2012 7 1/2% Senior Subordinated Notes Due 2020	Mar. 31, 2013 7 1/2% Senior Subordinated Notes Due 2020 Euro-Denominated EUR (€)	Mar. 31, 2013 7 1/2% Senior Subordinated Notes Due 2020 Net Investment Hedging USD ($)	Mar. 31, 2013 Foreign Exchange Contract USD ($)	Mar. 31, 2013 Foreign Exchange Contract Cash Flow Hedging	Mar. 31, 2013 Foreign Exchange Contract Derivatives Not Designated As Effective Hedges	Mar. 31, 2013 Commodity Contract USD ($)	Mar. 31, 2013 Swap Cash Flow Hedging USD ($)	Mar. 31, 2013 Forward-Starting Swaps Cash Flow Hedging Effective Commencing December 31, 2013 USD ($)	Mar. 31, 2013 Forward-Starting Swaps Cash Flow Hedging Effective Commencing December Thirty First Two Thousand And Fifteen USD ($)
Derivative [Line Items]
Notional amount outstanding in swap agreements, cash flow hedges										$ 1,200	$ 500	$ 250
Weighted average fixed rate of interest swaps										1.60%		1.60%
Derivative maturity date												Dec. 31, 2017
Effective date of swap agreement											2013-12-31	2015-12-31
Derivative maturity date							2015-01	2014-08	2014-03	2017-12
Notional amount of foreign currency contracts designated as cash flow hedges						449
Notional amount of foreign currency contracts not designated as effective hedges						212
Notional amount of commodity-based derivatives not designated as effective hedges									2
Deferred net gains within AOCI expected to be reclassified to earnings over the next twelve months	15
Interest rate of debt instrument		7.50%	7.50%
Debt instrument maturity year		2020	2020
Debt instrument, aggregate principal balance designated as investment hedge				150
Deferred gain (loss) on net investment hedge recorded in AOCI					$ 1.7