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Consolidated Statements of Stockholder's Equity (Deficit) and Comprehensive Income (Loss) (Parenthetical) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jan. 30, 2011	Jan. 31, 2010
Unrealized gains on derivatives, tax	$ (1)	$ (1)

Tax effect of the change in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges. Also includes an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).

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