Employee Stock Benefit Plans (Schedule Of Shares Authorized Under Stock Option Plan By Exercise Price Range) (Details) (USD $)	12 Months Ended
	Dec. 28, 2012
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding Range, Number Outstanding	8,483,000
Options Outstanding Range, Weighted-Average Exercise Price per Share	$ 33.85
Options Outstanding Range, Weighted-Average Remaining Contractual Life (in years)	4 years 4 months 24 days
Options Exercisable Range, Number Exercisable	3,854,000
Options Exercisable Range, Weighted-Average Exercise Price per Share	$ 26.52
Range lower limit	$ 7.27
Range upper limit	$ 53.95
$7.27 - $14.53 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding Range, Number Outstanding	448,000
Options Outstanding Range, Weighted-Average Exercise Price per Share	$ 11.67
Options Outstanding Range, Weighted-Average Remaining Contractual Life (in years)	1 year 3 months 11 days
Options Exercisable Range, Number Exercisable	448,000
Options Exercisable Range, Weighted-Average Exercise Price per Share	$ 11.67
Range lower limit	$ 7.27
Range upper limit	$ 14.53
$14.54 - $19.96 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding Range, Number Outstanding	907,000
Options Outstanding Range, Weighted-Average Exercise Price per Share	$ 18.90
Options Outstanding Range, Weighted-Average Remaining Contractual Life (in years)	2 years 9 months 29 days
Options Exercisable Range, Number Exercisable	724,000
Options Exercisable Range, Weighted-Average Exercise Price per Share	$ 18.65
Range lower limit	$ 14.54
Range upper limit	$ 19.96
$19.96 - $21.68 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding Range, Number Outstanding	1,041,000
Options Outstanding Range, Weighted-Average Exercise Price per Share	$ 21.02
Options Outstanding Range, Weighted-Average Remaining Contractual Life (in years)	3 years 9 months
Options Exercisable Range, Number Exercisable	592,000
Options Exercisable Range, Weighted-Average Exercise Price per Share	$ 20.96
Range lower limit	$ 19.96
Range upper limit	$ 21.68
$21.69 - $28.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding Range, Number Outstanding	664,000
Options Outstanding Range, Weighted-Average Exercise Price per Share	$ 26.00
Options Outstanding Range, Weighted-Average Remaining Contractual Life (in years)	1 year 9 months 7 days
Options Exercisable Range, Number Exercisable	629,000
Options Exercisable Range, Weighted-Average Exercise Price per Share	$ 25.93
Range lower limit	$ 21.69
Range upper limit	$ 28.00
$28.01 - $35.94 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding Range, Number Outstanding	859,000
Options Outstanding Range, Weighted-Average Exercise Price per Share	$ 31.36
Options Outstanding Range, Weighted-Average Remaining Contractual Life (in years)	4 years 3 months 4 days
Options Exercisable Range, Number Exercisable	503,000
Options Exercisable Range, Weighted-Average Exercise Price per Share	$ 31.48
Range lower limit	$ 28.01
Range upper limit	$ 35.94
$35.95 - $41.22 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding Range, Number Outstanding	1,171,000
Options Outstanding Range, Weighted-Average Exercise Price per Share	$ 37.61
Options Outstanding Range, Weighted-Average Remaining Contractual Life (in years)	3 years 11 months 23 days
Options Exercisable Range, Number Exercisable	657,000
Options Exercisable Range, Weighted-Average Exercise Price per Share	$ 38.57
Range lower limit	$ 35.95
Range upper limit	$ 41.22
$41.23 - $41.28 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding Range, Number Outstanding	1,145,000
Options Outstanding Range, Weighted-Average Exercise Price per Share	$ 41.28
Options Outstanding Range, Weighted-Average Remaining Contractual Life (in years)	5 years 9 months 15 days
Options Exercisable Range, Number Exercisable	89,000
Options Exercisable Range, Weighted-Average Exercise Price per Share	$ 41.28
Range lower limit	$ 41.23
Range upper limit	$ 41.28
$41.29 - $46.00 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding Range, Number Outstanding	772,000
Options Outstanding Range, Weighted-Average Exercise Price per Share	$ 43.12
Options Outstanding Range, Weighted-Average Remaining Contractual Life (in years)	5 years 4 months 21 days
Options Exercisable Range, Number Exercisable	140,000
Options Exercisable Range, Weighted-Average Exercise Price per Share	$ 43.08
Range lower limit	$ 41.29
Range upper limit	$ 46.00
$46.01 - $53.95 [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options Outstanding Range, Number Outstanding	1,476,000
Options Outstanding Range, Weighted-Average Exercise Price per Share	$ 50.22
Options Outstanding Range, Weighted-Average Remaining Contractual Life (in years)	6 years 6 months 18 days
Options Exercisable Range, Number Exercisable	72,000
Options Exercisable Range, Weighted-Average Exercise Price per Share	$ 53.70
Range lower limit	$ 46.01
Range upper limit	$ 53.95