Debt Cost Incurred (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 29, 2012		Dec. 31, 2011		Dec. 25, 2010
Debt Disclosure [Abstract]
Interest incurred	$ 198.6	[1]	$ 121.0	[1]	$ 111.4	[1]
Interest capitalized	(2.3)		(2.3)		(1.2)
Interest expensed	196.3		118.7		110.2
Noncash interest expense and amortization of debt discount
Debt Disclosure [Abstract]
Non-cash interest expense	$ 19.0		$ 17.5		$ 16.9

[1] Interest incurred includes total non-cash interest of $19.0 million, $17.5 million and $16.9 million for the fiscal years 2012, 2011 and 2010, respectively.