Equity (Common Stock) (Details) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 29, 2012	Dec. 31, 2011
Stockholders' Equity [Abstract]
Shares of common stock issued for stock option exercises	0.3	0.1	1.4	0.3