v2.4.0.6
Stockholders' Equity (Components Of Comprehensive Income, Net Of Related Immaterial Tax Effects) (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended 9 Months Ended
Jan. 27, 2012
Jan. 28, 2011
Jan. 27, 2012
Jan. 28, 2011
Stockholders' Equity [Abstract]        
Net income $ 119.6 $ 186.4 $ 424.7 $ 512.5
Change in currency translation adjustments (4.3) 0.4 (7.4) 4.7
Change in unrealized gains (losses) on available-for-sale investments 3.5 (6.4) (1.9) (0.1)
Change in unrealized gains (losses) on derivatives qualifying as cash flow hedges 1.4 2.2 4.1 (0.2)
Change in defined benefit obligation adjustments 3.0 0 3.0 0
Comprehensive income $ 117.2 $ 182.6 $ 416.5 $ 516.9