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Goodwill And Intangible Assets (Narrative) (Details) (USD $)	3 Months Ended			6 Months Ended
	Jul. 31, 2011	Jul. 30, 2011	Jul. 31, 2010	Jul. 30, 2011 years	Jul. 31, 2010
Changes in the carrying amount of goodwill	$ 0		$ 0	$ 0	$ 0
Weighted-average amortization period, in years				4
Amortization expense for intangible assets subject to amortization		1,000,000	1,000,000	2,000,000	2,000,000
Trade Name [Member]
Changes in the carrying amount of trade name		$ 0	$ 0	$ 0	$ 0

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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- Definition

The change during the reporting period in the carrying value of goodwill. The change could be the result of new goodwill acquired, goodwill impairment during the period, goodwill written off related to the sale of a business or other adjustments to goodwill.

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