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Consolidated Statements Of Shareholders' Equity (Parenthetical) (USD $) In Millions, except Per Share data, unless otherwise specified	12 Months Ended
	Jan. 28, 2012	Jan. 29, 2011	Jan. 30, 2010
Consolidated Statements Of Shareholders' Equity [Abstract]
Dividends (per share)	$ 0.92	$ 0.76	$ 0.64
Postretirement plan adjustments, tax	$ 10	$ 7	$ 6

Tax effects of the increase (decrease) to accumulated comprehensive income during the period related to benefit plans. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

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