Employee Stock Benefit Plans (Schedule Of Options Outstanding And Expected To Vest) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	12 Months Ended
	Dec. 28, 2012	Dec. 30, 2011
Employee Stock Ownership Plan (ESOP), Shares in ESOP [Abstract]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options	8,483
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Exercise Price	$ 33.85
Number Of Shares, Options outstanding	8,483	9,901
Weighted-Average Exercise Price per Share, Options outstanding	$ 33.85	$ 27.48
Weighted-Average Remaining Contractual Term (in years), Options outstanding	4 years 4 months 24 days
Aggregate Intrinsic Value, Options outstanding	$ 209,919
Number Of Shares, Options outstanding and expected to vest	4,259
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Exercise Price	$ 26.52
Weighted-Average Exercise Price per Share, Options outstanding and expected to vest	$ 39.72
Weighted-Average Remaining Contractual Term (in years), Options outstanding and expected to vest	5 years 4 months 28 days
Aggregate Intrinsic Value, Options outstanding and expected to vest	80,411
Number Of Shares, Options exercisable	3,854
Weighted-Average Exercise Price per Share, Options exercisable	$ 26.52
Weighted-Average Remaining Contractual Term (in years), Options exercisable	3 years 1 month 21 days
Aggregate Intrinsic Value, Options exercisable	$ 123,653