Deferred Tax Assets (Liabilities) (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 29, 2012	Dec. 31, 2011
Schedule of Deferred Tax Assets and Liabilities [Line Items]
Intangibles	$ (278,931)	$ (276,172)
Property, plant and equipment	(124,852)	(128,312)
Investment and other asset basis differences	(81,083)	4,156
Postretirement benefits	72,635	84,104
Operating accruals	44,035	56,135
Tax credit carryforwards	7,699	10,491
Net operating loss and other carryforwards	193,197	210,138
Valuation allowances	(112,517)	(167,842)
Other, net	58,314	61,628
Net deferred tax liabilities	$ (221,503)	$ (145,674)