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Pension and Postretirement Health Care Plans (Details 3) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Feb. 02, 2013	Jan. 28, 2012
Actual return on plan assets
Fair value of plan assets at end of year	$ 3,223	$ 2,921
Level 3
Actual return on plan assets
Fair value of plan assets at end of year	358	398
Private equity funds
Actual return on plan assets
Fair value of plan assets at end of year	236	283
Private equity funds \| Level 3
Level 3 Reconciliation
Fair value of plan assets at beginning of year	283	327
Actual return on plan assets
Assets held at reporting date	17	(6)
Assets sold during the period	25	26
Purchases, sales and settlements	(89)	(64)
Fair value of plan assets at end of year	236	283
Other assets
Actual return on plan assets
Fair value of plan assets at end of year	154	156
Other assets \| Level 3
Level 3 Reconciliation
Fair value of plan assets at beginning of year	115	127
Actual return on plan assets
Assets held at reporting date	4	9
Purchases, sales and settlements	3	(21)
Fair value of plan assets at end of year	$ 122	$ 115

Assets, usually stocks, bonds, and other investments, that have been segregated and restricted (usually in a trust) to provide benefits, at their fair value as of the measurement date. Plan assets include amounts contributed by the employer (and by employees for a contributory plan) and amounts earned from investing the contributions, less benefits paid. If a plan has liabilities other than for benefits, those non-benefit obligations may be considered as reductions of plan assets.

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