Property, Plant and Equipment - Additional information (Detail) (USD $)	Apr. 05, 2014	Dec. 31, 2013
Property Plant And Equipment [Abstract]
Accumulated depreciation	$ 6,780,000,000	$ 6,630,000,000
Property, plant and equipment net of accumulated depreciation, under a capital lease agreement	24,700,000	0
Gross property, plant and equipment acquired under capital lease	25,400,000
Total obligations associated with capital lease agreement	24,800,000	0
Capital lease obligations classified in accrued expenses and other current liabilities	2,100,000
Capital lease obligations classified in deferred credits and other liabilities	$ 22,700,000