Property, Plant and Equipment - Components of Property, Plant and Equipment (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 7,732,847,000	$ 6,873,295,000
Accumulated depreciation	(4,588,299,000)	(4,040,146,000)
Property, plant and equipment, net	3,144,548,000	2,833,149,000
Depreciation	780,300,000	727,900,000	595,300,000
Furniture and fixtures
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	197,429,000	180,800,000
Equipment and software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	5,345,314,000	4,680,118,000
Buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,872,559,000	1,748,214,000
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	120,654,000	117,513,000
Building construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	196,891,000	146,650,000
Assets held for future use
Property, Plant and Equipment [Line Items]
Construction in progress on facilities held for future use	$ 74,000,000