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Postretirement Health Care and Life Insurance Benefits (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011
Deferred tax expense to reduce deferred tax asset as a result of eliminated deductibility of retiree health care payments			$ 4
Postretirement Obligations
Estimated net actuarial gain of postretirement benefit obligations	3
Other Comprehensive Income [Member] \| Postretirement Obligations
Estimated net actuarial gain of postretirement benefit obligations	$ (4)	$ (5)	$ (5)

Amount of deferred tax liability attributable to taxable temporary differences from capitalized costs.

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- Definition

The amounts in accumulated other comprehensive income related to gains and losses that are not recognized immediately and are expected to be recognized as components of net periodic benefit cost over the next fiscal year that follows the most recent annual statement of financial position presented.

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