Shareholders' Equity (Changes In The Company's Common Stock Issued and Outstanding) (Details) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013	Jan. 28, 2012
Common stock, shares issued	(410,605,800)	(444,605,800)	(487,338,500)
Common stock, shares outstanding	364,935,000	387,701,100	414,181,000
Stock issued under stock plans	(7,435,800)	(10,805,900)	(10,235,900)
Stock repurchases	(27,000)	(12,200)	(1,269,400)
Deferred compensation plan distributions	104,800	65,500	126,500
Retirement of common stock	(31,000,000)	(34,000,000)	(42,732,700)
Common stock, shares issued	(379,605,800)	(410,605,800)	(444,605,800)
Common stock, shares outstanding	340,573,700	364,935,000	387,701,100
Balance	$ (5,378)	$ (6,249)	$ (6,051)	$ (5,933)
Other comprehensive income (loss)	407	(266)	(130)
Accumulated Other Comprehensive Income (Loss) [Member]
Balance	1,072	665	931	1,061
Other comprehensive income (loss)	$ 407	$ (266)	$ (130)
Other [Member]
Stock repurchases	(31,874,900)	(33,625,300)	(35,572,900)
Treasury Stock, Deferred Compensation Plans [Member]
Common stock, shares issued	(1,229,200)	(1,209,500)	(1,246,800)
Stock issued under stock plans	(54,800)	(85,200)	(89,200)
Deferred compensation plan distributions	104,800	65,500	126,500
Common stock, shares issued	(1,179,200)	(1,229,200)	(1,209,500)
Treasury Stock, Other [Member]
Common stock, shares issued	(44,441,600)	(55,695,200)	(71,910,700)
Stock issued under stock plans	(7,490,600)	(10,891,100)	(10,325,100)
Stock repurchases	(27,000)	(12,200)	(1,269,400)
Common stock, shares issued	(37,852,900)	(44,441,600)	(55,695,200)
Treasury Stock, Other [Member] | Other [Member]
Stock repurchases	(31,874,900)	(33,625,300)	(35,572,900)
Treasury Stock [Member]
Common stock, shares issued	(45,670,800)	(56,904,700)	(73,157,500)
Stock issued under stock plans	(7,435,800)	(10,805,900)	(10,235,900)
Stock repurchases	(27,000)	(12,200)	(1,269,400)
Deferred compensation plan distributions	104,800	65,500	126,500
Retirement of common stock	(31,000,000)	(34,000,000)	(42,732,700)
Common stock, shares issued	(39,032,100)	(45,670,800)	(56,904,700)
Treasury Stock [Member] | Other [Member]
Stock repurchases	(31,874,900)	(33,625,300)	(35,572,900)