Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements (Estimated Fair Values of Company's Long-Term Debt) (Detail)

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Fair Value Measurements (Estimated Fair Values of Company's Long-Term Debt) (Detail) (USD $)
In Millions
Apr. 30, 2011
May 01, 2010
Notional Amount
   
Long-term debt $ 6,081 $ 7,209
Carrying Amount
   
Long-term debt 6,314 7,474
Fair Value
   
Long-term debt $ 6,416 $ 7,372