Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Components Of Deferred Income Tax Assets And Liabilities [Line Items]
Employee and retiree benefits	$ 156,399	$ 132,210
Credit and net operating loss carryforwards	308,900	210,886
Property, plant and equipment, net	2,643	5,015
Trademarks and other	141,248	87,911
Amortizable R&D expenses	30,590	23,571
Other, net	25,148	18,729
Gross deferred tax assets	664,928	478,322
Valuation allowance	(450,733)	(290,879)
Total net deferred tax assets	$ 214,195	$ 187,443