Treasury Stock (Details) - USD ($) shares in Millions	3 Months Ended		6 Months Ended
	Jun. 25, 2016	Jun. 27, 2015	Jun. 25, 2016	Jun. 27, 2015
Treasury Stock Transactions, Excluding Value of Shares Reissued [Abstract]
Board-approved share repurchase program of common stock	$ 2,000,000,000.0		$ 2,000,000,000.0
Stock Repurchase Program Expiration Date			Dec. 31, 2017
Repurchased shares under the share repurchase program	0.1	0.9	1.3	1.5
Cost of share repurchased under the share repurchase program	$ 7,800,000	$ 76,600,000	$ 106,905,000	$ 124,540,000
Remaining authorization under the share repurchase program	$ 463,800,000		$ 463,800,000