v2.4.0.6
Balance Sheet Details - Cash and Cash Equivalents (Detail) (USD $)
In Millions, unless otherwise specified
Oct. 26, 2012
Apr. 27, 2012
Oct. 28, 2011
Apr. 29, 2011
Cash and Cash Equivalents [Line Items]        
Cash $ 1,275.2 $ 649.8    
Cash equivalents 541.6 900.0    
Cash and cash equivalents $ 1,816.8 $ 1,549.8 $ 2,269.0 $ 2,757.3