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Fair Value Disclosures (REIT Assets Measured on Recurring Basis) (Details) (Fair Value, Inputs, Level 1 [Member], USD $)
In Millions, unless otherwise specified |
Oct. 29, 2011
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Jan. 29, 2011
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Oct. 30, 2010
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|---|---|---|---|
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Fair Value, Inputs, Level 1 [Member]
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| REIT assets | $ 316 | $ 253 | $ 242 |