Share Repurchase Authorization Share Repurchase Authorization (Details) (USD $)	12 Months Ended			33 Months Ended	21 Months Ended
	Dec. 30, 2014	Dec. 31, 2013	Dec. 25, 2012	Aug. 22, 2012	Jun. 04, 2014	Nov. 17, 2009	Jun. 05, 2014
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 533,400,000
Repurchase of common stock	159,503,000	339,409,000	31,566,000
Treasury Stock Acquired, Average Cost Per Share	$ 163.62
Repurchase of common stock	941,878
2009 Repurchase Authorization [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount						600,000,000.0
Repurchase of common stock			5,000,000	247,600,000
Treasury Stock Acquired, Average Cost Per Share			$ 144.24	$ 87.03
Repurchase of common stock			34,600	2,844,669
2012 Repurchase Agreement [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount				600,000,000
Repurchase of common stock	87,500,000	332,100,000	20,000,000		439,700,000
Treasury Stock Acquired, Average Cost Per Share	$ 170.15	$ 166.73	$ 161.00		$ 167.13
Repurchase of common stock	514,357	1,992,250	124,100		2,630,707
2014 Repurchase Authorization [Member]
Equity, Class of Treasury Stock [Line Items]
Stock Repurchase Program, Authorized Amount							600,000,000.0
Repurchase of common stock	66,600,000
Treasury Stock Acquired, Average Cost Per Share	$ 155.78
Repurchase of common stock	427,521
Repurchase Agreements [Member]
Equity, Class of Treasury Stock [Line Items]
Repurchase of common stock	$ 154,100,000