Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Detail) (USD $) In Millions, unless otherwise specified	Dec. 28, 2013	Dec. 29, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Inventories	$ 24.4	$ 25.0	$ 24.2
Accruals not currently deductible	63.2	60.4	73.4
Valuation allowance	(2.4)	(3.7)	(5.6)
Total current (included in deferred income tax assets and other accrued liabilities)	85.2	81.7	92.0
Employee benefits	62.5	108.1	133.9
Net operating losses	59.9	59.2	52.2
Depreciation and amortization	(180.8)	(161.4)	(150.4)
Valuation allowance	(43.0)	(40.2)	(34.8)
Equity-based compensation	17.6	17.1	14.8
Other	(2.9)	0.4	1.4
Total long term	(86.7)	(16.8)	17.1
Net deferred income tax asset (liability)	$ (1.5)	$ 64.9	$ 109.1