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Borrowings (Schedule Of Principal Payments For Long-Term Debt ) (Detail) (USD $)
In Millions, unless otherwise specified
Oct. 27, 2012
Debt Disclosure [Abstract]  
2013 (remaining nine months) $ 0
2014 3,260
2015 500
2016 3,000
2017 750
Thereafter 8,500
Total future principal payments for long-term debt $ 16,010