Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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- Definition

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Financing Activities (Details) (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended				6 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jan. 10, 2012 3.875% Senior notes due 2022 [Member]	Jan. 10, 2012 5.125% Senior debentures due 2042 [Member]	Jul. 28, 2012 8.0% Senior Debentures Due 2012 [Member]	Jul. 30, 2011 8.0% Senior Debentures Due 2012 [Member]	Jul. 28, 2012 5.35% Senior Notes Due 2012 [Member]	Jul. 30, 2011 5.35% Senior Notes Due 2012 [Member]
Debt Issued, Face Amount			$ 550	$ 250
Debt Issued, Interest Rate, Stated Percentage			3.875%	5.125%	8.00%		5.35%
Loss on extinguishment of debt	(4)
Interest expense savings	4
Extinguishment of Debt, Amount					173	0	616	0
Amount Of Outstanding Debt Repaid At Maturity		330
Stock Repurchased During Period, Shares	15,977,428
Stock Repurchased During Period, Value	588
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 764