Share-Based Compensation (Summary Of Nonvested Stock Activity) (Details) (USD $) In Thousands, except Per Share data	6 Months Ended
	Jul. 30, 2011		Jul. 31, 2010		May 31, 2011	Mar. 31, 2011
Share-Based Compensation
Balance at beginning of year, Shares	1,116		883
Granted, Shares	1,141	[1]	462	[1]
Vested, Shares	(266)		(195)
Forfeited, Shares	(17)		(20)
Balance at end of quarter, Shares	1,974		1,130
Balance at beginning of year, Weighted Average Grant Date Fair Value	$ 49.30		$ 45.44
Granted, Weighted Average Grant Date Fair Value	$ 52.48	[1]	$ 55.45	[1]
Vested, Weighted Average Grant Date Fair Value	$ 49.31		$ 47.38
Forfeited, Weighted Average Grant Date Fair Value	$ 52.84		$ 46.47
Balance at end of quarter, Weighted Average Grant Date Fair Value	$ 51.11		$ 49.17
Shares granted which include both performance and service vesting conditions					578	578

[1] Includes 578 thousand shares granted in March and May 2011 which include both performance and service vesting conditions.