Derivative and Other Hedging Financial Instruments - Additional Information (Detail) In Millions, unless otherwise specified	6 Months Ended				6 Months Ended		6 Months Ended
	Jun. 30, 2013 USD ($)	Jun. 30, 2013 7 1/2% Senior Subordinated Notes Due 2020	Dec. 31, 2012 7 1/2% Senior Subordinated Notes Due 2020	Jun. 30, 2013 7 1/2% Senior Subordinated Notes Due 2020 Euro-Denominated EUR (€)	Jun. 30, 2013 7 1/2% Senior Subordinated Notes Due 2020 Net Investment Hedging USD ($)	Jun. 30, 2013 Foreign Exchange Contract USD ($)	Jun. 30, 2013 Foreign Exchange Contract Cash Flow Hedging	Jun. 30, 2013 Foreign Exchange Contract Derivatives Not Designated As Effective Hedges	Jun. 30, 2013 Commodity Contract USD ($)	Jun. 30, 2013 Swap Cash Flow Hedging USD ($)	Jun. 30, 2013 Forward-Starting Swaps Cash Flow Hedging Effective Commencing December 31, 2013 USD ($)	Jun. 30, 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							2015-02	2014-12	2014-03	2017-12
Notional amount of foreign currency contracts designated as cash flow hedges						432
Notional amount of foreign currency contracts not designated as effective hedges						326
Notional amount of commodity-based derivatives not designated as effective hedges									7
Deferred net gains within AOCI expected to be reclassified to earnings over the next twelve months	16
Interest rate of debt instrument		7.50%	7.50%
Debt instrument maturity year		2020	2020
Debt instrument, aggregate principal amount				150
Debt instrument, principal balance designated as investment hedge				107
Deferred gain (loss) on net investment hedge recorded in AOCI					$ 3.7