Fair Value Measurements (Details) (Fair Value, Measurements, Recurring, USD $) In Millions, unless otherwise specified	Feb. 03, 2012	Jan. 28, 2011
Fair Value, Assets and Liabilities Measured on Recurring Basis
Derivative instruments Assets	$ 140	$ 27
Total assets	14,884	12,073
Derivative instruments Liabilities	17	28
Total liabilities	17	28
Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Derivative instruments Assets	0	0
Total assets	8,372	6,261
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	140	27
Total assets	6,512	5,780
Derivative instruments Liabilities	17	28
Total liabilities	17	28
Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Derivative instruments Assets	0	0
Total assets	0	32
Derivative instruments Liabilities	0	0
Total liabilities	0	0
Money market funds
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	8,370	6,261
Money market funds | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	8,370	6,261
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
Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	2,011	2,945
Commercial paper | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	0	0
Commercial paper | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	2,011	2,945
Commercial paper | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	0	0
U.S. corporate
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	5	0
Debt securities	2,668	496
U.S. corporate | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	0	0
Debt securities	0	0
U.S. corporate | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	5	0
Debt securities	2,668	464
U.S. corporate | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	0	0
Debt securities	0	32
U.S. government and agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	0	1,699
Debt securities	0	79
U.S. government and agencies | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	0	0
Debt securities	0	0
U.S. government and agencies | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	0	1,699
Debt securities	0	79
U.S. government and agencies | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Cash equivalents	0	0
Debt securities	0	0
Non- U.S. government and agencies
Fair Value, Assets and Liabilities Measured on Recurring Basis
Debt securities	94	46
Non- U.S. government and agencies | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Debt securities	0	0
Non- U.S. government and agencies | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Debt securities	94	46
Non- U.S. government and agencies | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Debt securities	0	0
Commercial paper
Fair Value, Assets and Liabilities Measured on Recurring Basis
Debt securities	434	0
Commercial paper | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Debt securities	0	0
Commercial paper | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Debt securities	434	0
Commercial paper | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Debt securities	0	0
International corporate
Fair Value, Assets and Liabilities Measured on Recurring Basis
Debt securities	1,055	411
International corporate | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Debt securities	0	0
International corporate | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Debt securities	1,055	411
International corporate | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Debt securities	0	0
Equity and other securities
Fair Value, Assets and Liabilities Measured on Recurring Basis
Debt securities	107	109
Equity and other securities | Fair Value, Inputs, Level 1
Fair Value, Assets and Liabilities Measured on Recurring Basis
Debt securities	2	0
Equity and other securities | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring Basis
Debt securities	105	109
Equity and other securities | Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring Basis
Debt securities	$ 0	$ 0