Income Taxes - Other Information (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 30, 2012	Dec. 25, 2011	Dec. 26, 2010
Income Tax Disclosure [Abstract]
Income tax benefits related to exercise or vesting of equity awards	$ 2.4	$ 1.6	$ 2.1
Accumulated other comprehensive loss	377	370
Total amount of unrecognized tax benefit	30	31
Total amount of accrued interest and penalties	16
Net benefit of accrued interest and penalties	0.3	1.4	6.3
Total amount of unrecognized tax benefit which may be recognized in the next twelve months that would impact the effective tax rate	$ 16