CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $) In Millions, except Per Share data, unless otherwise specified	Apr. 26, 2013	Apr. 27, 2012
Accounts receivable, allowance	$ 4.2	$ 0.4
Preferred stock, par value	$ 0.001	$ 0.001
Preferred Stock, Shares Authorized	5.0	5.0
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	885.0	885.0
Common stock, shares issued	460.9	468.9
Treasury stock, shares	104.3	104.3