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Fair Value Disclosures (Other Non-Financial Assets Measured on a Non-Recurring Basis) (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Jan. 28, 2012
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Jan. 29, 2011
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Jan. 30, 2010
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| Other non-financial assets measured on a non-recurring basis, carrying value-stores | $ 68 | $ 3 | |
| Impairments (Note 9) | 58 | 3 | 42 |
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Fair Value, Inputs, Level 3 [Member]
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| Stores | $ 10 | ||