Consolidated Statements of Equity (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Mar. 30, 2013	Mar. 31, 2012	Apr. 02, 2011
Statement of Stockholders' Equity [Abstract]
Number of Class B common shares converted into Class A common shares	950,000		11,300,000
Federal, state and local tax benefits from stock-compensation arrangements	$ 40.9	$ 39.9	$ 42.6