Accelerated Share Repurchase Agreements (Narrative) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended			3 Months Ended			3 Months Ended
	Nov. 03, 2013	Oct. 28, 2012	Feb. 03, 2013	Aug. 04, 2013 Q1 Accelerated Share Repurchase Agreement [Member]	May 05, 2013 Q1 Accelerated Share Repurchase Agreement [Member]	Nov. 03, 2013 Q1 Accelerated Share Repurchase Agreement [Member]	Nov. 03, 2013 Q2 Accelerated Share Repurchase Agreement [Member]	Aug. 04, 2013 Q2 Accelerated Share Repurchase Agreement [Member]	Nov. 03, 2013 Q3 Accelerated Share Repurchase Agreement [Member]
Accelerated Share Repurchase Agreements [Line Items]
Cash paid for repurchase of common stock	$ 6,446	$ 3,330			$ 1,500			$ 1,700	$ 1,500
Number of shares of common stock repurchased pursuant to accelerated share repurchase agreement				2.1	18.1		2.4	19.6	16.4
Treasury Stock, Value	16,818		10,694			1,500	1,700		1,225
Paid-In Capital	$ 7,979		$ 7,948						$ 275