Derivative Financial Instruments (Derivative Instruments Designated as Cash Flow Hedges Activity) (Details) In Millions	Apr. 30, 2011 Currency, U.S. Dollars [Member] USD ($)		Jan. 29, 2011 Currency, U.S. Dollars [Member] USD ($)		May 01, 2010 Currency, U.S. Dollars [Member] USD ($)		Apr. 30, 2011 Currency, British Pounds [Member] GBP (£)	Jan. 29, 2011 Currency, British Pounds [Member] GBP (£)	May 01, 2010 Currency, British Pounds [Member] GBP (£)
Notional amounts of cash flow hedges	$ 1,020	[1]	$ 1,025	[1]	$ 705	[1]	£ 47	£ 54	£ 18

[1] The principal currencies hedged against changes in the U.S. dollar were Japanese yen, Canadian dollars, and British pounds.