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CONSOLIDATED STATEMENT OF CHANGES IN SHAREOWNERS' EQUITY (Comprehensive income Parenthetical) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 28, 2012	Jan. 29, 2011	Jan. 30, 2010
Comprehensive income:
Unrealized loss on cash flow hedging activities, income tax	$ (15)
Unrealized gain on available for sale securities, income tax	1	4
Amortization of unrealized gains and losses on hedging activities, income tax	1	1	1
Change in pension and other postretirement defined benefit plans, income tax	$ (154)	$ 21	$ (59)

Tax effect on the accumulated change in the value of either the projected benefit obligation or plan assets resulting from experience different from that assumed or from a change in an actuarial assumption that has not been recognized in net periodic benefit cost.

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- Definition

Tax effect on the change in accumulated gains and losses from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Includes an entity's share of an equity investee's Increase or Decrease in deferred hedging gains or losses.

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- Definition

Tax effect on gross appreciation or the gross loss in value of the total of unsold securities during the period being reported on.

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