Financing Activities (Details) (USD $) In Millions, except Share data, unless otherwise specified	3 Months Ended	9 Months Ended		12 Months Ended					3 Months Ended	9 Months Ended
	Feb. 02, 2013	Oct. 27, 2012	Oct. 29, 2011	Feb. 01, 2014	Jan. 10, 2012 3.875% Senior notes due 2022 [Member]	Jan. 10, 2012 5.125% Senior debentures due 2042 [Member]	Nov. 20, 2012 2.875% Senior notes due 2023 [Member]	Nov. 20, 2012 4.3% Senior notes due 2043 [Member]	Feb. 02, 2013 November 28, 2012 Debt Tender [Member]	Oct. 27, 2012 8.0% Senior Debentures Due 2012 [Member]	Oct. 29, 2011 8.0% Senior Debentures Due 2012 [Member]	Oct. 27, 2012 5.35% Senior Notes Due 2012 [Member]	Oct. 29, 2011 5.35% Senior Notes Due 2012 [Member]	Oct. 27, 2012 5.875% Senior Notes Due 2013 [Member]	Oct. 27, 2012 Minimum [Member] November 28, 2012 Debt Tender [Member]	Oct. 27, 2012 Maximum [Member] November 28, 2012 Debt Tender [Member]	Oct. 27, 2012 Carrying Amount	Oct. 29, 2011 Carrying Amount	Oct. 27, 2012 Carrying Amount November 28, 2012 Debt Tender [Member]
Debt Issued, Face Amount					$ 550	$ 250	$ 750	$ 250
Debt Issued, Interest Rate, Stated Percentage					3.875%	5.125%	2.875%	4.30%		8.00%		5.35%		5.875%	5.90%	7.875%
Short-term Debt, Refinanced, Amount	298
Loss on extinguishment of debt	133	4
Interest expense savings		4
Extinguishment of Debt, Amount									700	173	0	616	0
Long-term debt																	6,784	6,124	706
Amount Of Outstanding Debt Repaid At Maturity			439
Stock Repurchased During Period, Shares		26,256,576
Stock Repurchased During Period, Value		991
Stock Repurchase Program, Remaining Authorized Repurchase Amount		361
Extinguishment of Debt, Gain (Loss), Net of Tax	83
Expected Interest Expense Savings				$ 30