v2.4.0.6
Balance Sheet Details (Short-Term And Long-Term Deferred Revenue) (Details) (USD $)
In Millions, unless otherwise specified
Jan. 27, 2012
Apr. 29, 2011
Deferred Revenue Arrangement [Line Items]    
Short-term $ 1,309.3 $ 1,226.6
Long-term 1,236.5 1,088.3
Short-term and long-term deferred revenue, Total 2,545.8 2,314.9
Product [Member]
   
Deferred Revenue Arrangement [Line Items]    
Short-term and long-term deferred revenue, Total 32.8 106.2
SEM And Service [Member]
   
Deferred Revenue Arrangement [Line Items]    
Short-term and long-term deferred revenue, Total $ 2,513.0 $ 2,208.7