Stockholders' Equity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands						1 Months Ended	2 Months Ended	3 Months Ended	6 Months Ended	12 Months Ended
	Dec. 27, 2016	Sep. 25, 2015	Aug. 31, 2015	Jul. 17, 2015	Jul. 08, 2015	Nov. 30, 2016	Feb. 20, 2018	Sep. 27, 2015	Jun. 28, 2015	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016	Feb. 22, 2017	Jun. 03, 2015	Jun. 01, 2015	Dec. 28, 2014	Aug. 31, 2014
Common Stock, Dividends, Per Share, Cash Paid										$ 0.28	$ 0.245	$ 0.225
Number of Shares, beginning of year							470,424		470,424	470,424	470,424	470,424
Number of Shares, end of year										470,424	470,424	470,424
Stockholders' Equity Activity
Number of Shares at beginning of year							229,912			223,850
Number of Shares at end of year										229,912	223,850
Initial Shares Delivered Under ASR Agreement Percentage			85.00%			85.00%
Preferred Stock, Shares Authorized										100,000	100,000	100,000
Preferred Stock, Shares Issued										0	0	0
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Net of Tax										$ 1,797	$ 1,774	$ 915
Subsequent Event
Stockholders' Equity Activity
Repurchases of common stock							1,265
Treasury Stock, Value, Acquired, Cost Method, excluding Commissions							$ 20,661
Stock Repurchase Program, Cost Incurred							18
$150 Million Share Repurchase Program
Stockholders' Equity Activity
Repurchases of common stock										8,607
Stock Repurchase Program, Authorized Amount													$ 150,000
Treasury Stock, Value, Acquired, Cost Method, excluding Commissions										$ 127,367
Stock Repurchase Program, Repurchase Accrual										1,259
Stock Repurchase Program, Cost Incurred										123
Stock Repurchase Program, Remaining Authorized Repurchase Amount										$ 22,633
February 2018 Repurchase Program [Domain] [Domain] | Subsequent Event
Stockholders' Equity Activity
Stock Repurchase Program, Authorized Amount							$ 175,000
$1.4 Billion Repurchase Program
Stockholders' Equity Activity
Repurchases of common stock											18,142	2,066
Stock Repurchase Program, Authorized Amount															$ 1,400,000
Treasury Stock, Value, Acquired, Cost Method, excluding Commissions											$ 184,986	$ 21,959
Stock Repurchase Program, Repurchase Accrual												1,700
Stock Repurchase Program, Cost Incurred											$ 272	28
Accelerated Share Repurchase Program
Stockholders' Equity Activity
Repurchases of common stock	316	3,551	14,385			11,087
Treasury Stock, Value, Acquired, Cost Method, excluding Commissions			$ 164,500
Stock Repurchase Program, Cost Incurred												58
Treasury Stock, Value Acquired, Cost Method, Anticipated Under Accelerated Share Repurchase Program						$ 150,000
Tender Offer and Purchase Agreement
Stockholders' Equity Activity
Stock Repurchase Program, Authorized Amount														$ 850,000
Tender Offer
Stockholders' Equity Activity
Repurchases of common stock					55,808
Stock Repurchase Program, Authorized Amount														639,000
Treasury Stock, Value, Acquired, Cost Method, excluding Commissions					$ 639,000
Stock Repurchase Program, Cost Incurred												$ 2,288
Treasury Stock Acquired, Average Cost Per Share					$ 11.45
Purchase agreement
Stockholders' Equity Activity
Repurchases of common stock				18,416
Stock Repurchase Program, Authorized Amount														$ 211,000
Treasury Stock, Value, Acquired, Cost Method, excluding Commissions				$ 210,867
Treasury Stock Acquired, Average Cost Per Share				$ 11.45
$100 Million Repurchase Program
Stockholders' Equity Activity
Repurchases of common stock									5,655
Stock Repurchase Program, Authorized Amount																	$ 100,000
Treasury Stock, Value, Acquired, Cost Method, excluding Commissions								$ 14,480	$ 61,631
Stock Repurchase Program, Cost Incurred									$ 86
Stock Repurchase Program, Remaining Authorized Repurchase Amount																$ 76,111
Common Stock Held in Treasury
Stockholders' Equity Activity
Number of Shares at beginning of year							229,912		104,614	223,850	198,109	104,614
Repurchases of common stock										8,607	29,545	99,881
Common shares issued, stock options, net										(1,853)	(2,914)	(5,043)
Common shares issued, restricted stock, net										(612)	(796)	(1,258)
Common shares issued, Director fees										(15)	(20)	(21)
Common shares issued, Other										(65)	(74)	(64)
Number of Shares at end of year										229,912	223,850	198,109