Fair Value Measurements (Details) (USD $) In Millions, unless otherwise specified	Aug. 02, 2013	Feb. 01, 2013
Fair Value, Assets and Liabilities Measured on Recurring Basis
Derivative instruments Assets	$ 115	$ 68
Total assets	9,799	11,553
Derivative instruments Liabilities	7	16
Total liabilities	7	16
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Derivative instruments Assets	0	0
Total assets	7,102	8,870
Derivative instruments Liabilities	0	0
Total liabilities	0	0
Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Derivative instruments Assets	115	68
Total assets	2,697	2,683
Derivative instruments Liabilities	7	16
Total liabilities	7	16
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Derivative instruments Assets	0	0
Total assets	0	0
Derivative instruments Liabilities	0	0
Total liabilities	0	0
Money market funds
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	7,102	8,869
Money market funds | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	7,102	8,869
Money market funds | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	0	0
Money market funds | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	0	0
Non- U.S. government and agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	79	96
Non- U.S. government and agencies | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	0	0
Non- U.S. government and agencies | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	79	96
Non- U.S. government and agencies | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	0	0
Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	5	6
Commercial paper | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	0	0
Commercial paper | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	5	6
Commercial paper | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	0	0
U.S. corporate
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	1,631	1,701
U.S. corporate | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	0	0
U.S. corporate | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	1,631	1,701
U.S. corporate | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	0	0
International corporate
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	740	700
International corporate | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	0	0
International corporate | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	740	700
International corporate | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	0	0
Equity and other securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	127	113
Equity and other securities | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	0	1
Equity and other securities | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	127	112
Equity and other securities | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Securities	$ 0	$ 0