Derivative Financial Instruments and Hedging Activities 3 (Details) (USD $)	3 Months Ended
	Jul. 27, 2011	Apr. 27, 2011
Derivative Financial Instruments and Hedging Activities (Textuals) [Abstract]
Notional amount of foreign currency derivatives	$ 1,900,000,000	$ 1,860,000,000
Notional amount of interest rate derivatives	760,000,000	1,510,000,000
Notional amount of cross currency interest rate swap	397,500,000	377,300,000
Maturity date of foreign currency forward contracts	2014
Cash proceeds from termination of foreign currency forward contracts	11,600,000
Number of year company decided for forecasting hedging transaction	Not exceeding 3 years.
Net deferred gains/(losses) reported in AOCI to be reclassified to earnings within twelve months	(5,100,000)
Notional amount of foreign currency derivative instruments not designated as hedging Instruments	376,600,000	309,900,000
Net unrealized gain/(loss) related to outstanding nondesignated derivative instruments	$ (4,600,000)	$ 8,300,000