Equity (Share Repurchase Program) (Details) (USD $) Share data in Millions, unless otherwise specified	3 Months Ended	9 Months Ended		3 Months Ended			9 Months Ended	15 Months Ended
	Dec. 25, 2010	Dec. 29, 2012	Dec. 31, 2011	Dec. 29, 2012 Combined 2012 and 2010 Repurchase Programs [Member]	Dec. 29, 2012 November 2012 Share Repurchase Program [Member]	Dec. 29, 2012 November 2010 Share Repurchase Program [Member]	Dec. 31, 2011 November 2010 Share Repurchase Program [Member]	Dec. 31, 2011 November 2010 Share Repurchase Program [Member]
Stock Repurchase Program, Authorized Amount	$ 80,000,000				$ 200,000,000
Stock Repurchased During Period, Shares				1.5			4.9	5.1
Repurchase and retirement of common stock		47,856,000	76,782,000	47,900,000		500,000	76,800,000	79,500,000
Average cost of shares repurchased				30.96			15.63	15.51
Stock Repurchase Program Remaining Authorized Amount For Future Repurchases					$ 152,600,000