Other Financial Information - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Other Financial Information By Period [Line Items]
Inventories accounted for under the LIFO method	$ 262,160,000	$ 188,390,000
Decrease amount of inventory that would have been valued using the FIFO method	571,227,000	580,238,000
Increased pretax income from discontinued operation derived from fair value exceeding the LIFO carrying value		296,185,000
Foreign currency translation gains (losses), net of tax	613,492,000	496,161,000
Net gains (losses) from foreign currency transactions	5,092,000	22,131,000	(63,861,000)
Income taxes paid	566,999,000	938,944,000	585,759,000
Interest paid, net of amounts capitalized	9,501,000	38,120,000	35,452,000
Currency, Canadian Dollar
Other Financial Information By Period [Line Items]
Foreign currency translation gains (losses), net of tax	564,688,000
Currency, British Pound Sterling
Other Financial Information By Period [Line Items]
Foreign currency translation gains (losses), net of tax	47,542,000
Other Foreign Currency Instruments
Other Financial Information By Period [Line Items]
Foreign currency translation gains (losses), net of tax	$ 1,262,000