Additional Financial Statement Information Cash and Cash Equivalents and Short-Term Investments (Details) (USD $) In Millions, unless otherwise specified	Jan. 31, 2015		Feb. 01, 2014		Feb. 02, 2013	Jan. 28, 2012
Additional Financial Statement Information [Abstract]
Cash	$ 1,086	[1]	$ 991	[1]
Bank certificates of deposit and time deposits	341		323
Money market funds	88		196
Cash equivalents	429		519
Cash and cash equivalents	1,515		1,510		1,460	1,885
Amount in transit from banks for customer credit and debit card transactions	$ 77		$ 64

[1] Cash includes $77 million and $64 million of amounts in transit from banks for customer credit card and debit card transactions as of January 31, 2015 and February 1, 2014, respectively.