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Acquisition (Indefinite-Lived Intangible Assets) (Details) (Trade Names [Member], USD $)
In Millions, unless otherwise specified |
3 Months Ended |
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Apr. 28, 2012
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Trade Names [Member]
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| Acquired Indefinite-lived Intangible Assets [Line Items] | |
| Acquired indefinite-lived intangible asset | $ 277 |