Accelerated Share Repurchase Agreements (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			1 Months Ended	3 Months Ended
	May 04, 2014	May 05, 2013	Feb. 02, 2014	May 04, 2014 Q1 Accelerated Share Repurchase Agreement [Member]	May 04, 2014 Q1 Accelerated Share Repurchase Agreement [Member]
Accelerated Share Repurchases [Line Items]
Cash paid for repurchase of common stock	$ 1,250	$ 2,196			$ 950
Number of shares of common stock repurchased pursuant to accelerated share repurchase agreement				2.6	9.5
Treasury Stock, Value	$ 20,444		$ 19,194	$ 950	$ 950