Condensed Statement of Changes in Stockholders' Equity Statement - USD ($)	Total	Class A [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock, Common [Member]	AOCI Including Portion Attributable to Noncontrolling Interest [Member]	Stockholders' Equity, Total [Member]
Stockholders' Equity Attributable to Parent at Dec. 31, 2017								$ 1,801,000,000.0
Common Stock, Shares, Outstanding at Dec. 31, 2017			114,447,605
Common Stock, Value, Outstanding at Dec. 31, 2017			$ 1,100,000
Additional Paid in Capital, Common Stock at Dec. 31, 2017				$ 1,086,900,000
Treasury Stock, Value at Dec. 31, 2017						$ (1,580,900,000)
Accumulated Other Comprehensive Income (Loss), Net of Tax at Dec. 31, 2017							$ (128,500,000)
Retained Earnings (Accumulated Deficit) at Dec. 31, 2017					$ 2,422,400,000
Net Income (Loss) Attributable to Parent					270,600,000			270,600,000
Impact on Retained Earnings, Adoption of ASC 606					(276,300,000)			(276,300,000)
Dividends, Common Stock, Cash					(24,200,000)			(24,200,000)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			412,247
Stock Granted, Value, Share-based Compensation, Gross			$ 0
Stock Issued During Period, Value, Restricted Stock Award, Gross				13,600,000				13,600,000
Stock Issued During Period, Shares, Share-based Compensation, Forfeited			(41,135)
Stock Granted, Value, Share-based Compensation, Forfeited			$ 0
Payments Related to Tax Withholding for Share-based Compensation				(15,400,000)				(15,400,000)
Shares Paid for Tax Withholding for Share Based Compensation			(173,799)
Treasury Stock, Shares, Acquired			(8,157,287)
Treasury Stock, Value, Acquired, Cost Method			$ 0			(691,400,000)		(800,000,000.0)
Other Comprehensive Income (Loss), Net of Tax							(15,900,000)	(15,900,000)
Stockholders' Equity Attributable to Parent at Jun. 28, 2018								954,200,000
Common Stock, Shares, Outstanding at Jun. 28, 2018			106,498,050
Additional Paid in Capital, Common Stock at Jun. 28, 2018				977,300,000
Treasury Stock, Value at Jun. 28, 2018						(2,272,300,000)
Accumulated Other Comprehensive Income (Loss), Net of Tax at Jun. 28, 2018							(144,400,000)
Retained Earnings (Accumulated Deficit) at Jun. 28, 2018					2,392,500,000
Common Stock, Value, Outstanding at Jun. 28, 2018			$ 1,100,000
Stockholders' Equity Attributable to Parent at Dec. 31, 2017								1,801,000,000.0
Common Stock, Shares, Outstanding at Dec. 31, 2017			114,447,605
Common Stock, Value, Outstanding at Dec. 31, 2017			$ 1,100,000
Additional Paid in Capital, Common Stock at Dec. 31, 2017				1,086,900,000
Treasury Stock, Value at Dec. 31, 2017						(1,580,900,000)
Accumulated Other Comprehensive Income (Loss), Net of Tax at Dec. 31, 2017							(128,500,000)
Retained Earnings (Accumulated Deficit) at Dec. 31, 2017					2,422,400,000
Net Income (Loss) Attributable to Parent	$ 439,400,000
Payments Related to Tax Withholding for Share-based Compensation	15,500,000
Other Comprehensive Income (Loss), Net of Tax	(16,500,000)
Stockholders' Equity Attributable to Parent at Sep. 27, 2018								1,115,900,000
Common Stock, Shares, Outstanding at Sep. 27, 2018			106,493,926
Additional Paid in Capital, Common Stock at Sep. 27, 2018				983,400,000
Treasury Stock, Value at Sep. 27, 2018						(2,272,300,000)
Accumulated Other Comprehensive Income (Loss), Net of Tax at Sep. 27, 2018							(145,000,000.0)
Retained Earnings (Accumulated Deficit) at Sep. 27, 2018					2,548,700,000
Common Stock, Value, Outstanding at Sep. 27, 2018			$ 1,100,000
Stockholders' Equity Attributable to Parent at Jun. 28, 2018								954,200,000
Common Stock, Shares, Outstanding at Jun. 28, 2018			106,498,050
Additional Paid in Capital, Common Stock at Jun. 28, 2018				977,300,000
Treasury Stock, Value at Jun. 28, 2018						(2,272,300,000)
Accumulated Other Comprehensive Income (Loss), Net of Tax at Jun. 28, 2018							(144,400,000)
Retained Earnings (Accumulated Deficit) at Jun. 28, 2018					2,392,500,000
Net Income (Loss) Attributable to Parent	168,800,000				168,800,000			168,800,000
Dividends, Common Stock, Cash					(12,600,000)			(12,600,000)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			1,409
Stock Granted, Value, Share-based Compensation, Gross			$ 0
Stock Issued During Period, Value, Restricted Stock Award, Gross				6,300,000				6,300,000
Stock Issued During Period, Shares, Share-based Compensation, Forfeited			(3,378)
Stock Granted, Value, Share-based Compensation, Forfeited			$ 0
Payments Related to Tax Withholding for Share-based Compensation				(200,000)				(200,000)
Shares Paid for Tax Withholding for Share Based Compensation			(2,155)
Other Comprehensive Income (Loss), Net of Tax	(600,000)						(600,000)	(600,000)
Stockholders' Equity Attributable to Parent at Sep. 27, 2018								1,115,900,000
Common Stock, Shares, Outstanding at Sep. 27, 2018			106,493,926
Additional Paid in Capital, Common Stock at Sep. 27, 2018				983,400,000
Treasury Stock, Value at Sep. 27, 2018						(2,272,300,000)
Accumulated Other Comprehensive Income (Loss), Net of Tax at Sep. 27, 2018							(145,000,000.0)
Retained Earnings (Accumulated Deficit) at Sep. 27, 2018					2,548,700,000
Common Stock, Value, Outstanding at Sep. 27, 2018			$ 1,100,000
Stockholders' Equity Attributable to Parent at Dec. 31, 2018	1,237,600,000							1,237,600,000
Common Stock, Shares, Outstanding at Dec. 31, 2018			105,461,817
Common Stock, Value, Outstanding at Dec. 31, 2018		$ 1,100,000	$ 1,100,000
Additional Paid in Capital, Common Stock at Dec. 31, 2018	1,100,900,000			1,100,900,000
Treasury Stock, Value at Dec. 31, 2018	2,381,000,000.0					(2,381,000,000.0)
Accumulated Other Comprehensive Income (Loss), Net of Tax at Dec. 31, 2018	(196,600,000)						(196,600,000)
Retained Earnings (Accumulated Deficit) at Dec. 31, 2018	2,713,200,000				2,713,200,000
Net Income (Loss) Attributable to Parent					331,100,000			331,100,000
Reclassification of Stranded tax effects related to TCJA					8,300,000		(8,300,000)	0
Dividends, Common Stock, Cash					(25,300,000)			(25,300,000)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			392,933
Stock Granted, Value, Share-based Compensation, Gross			$ 0
Stock Issued During Period, Value, Restricted Stock Award, Gross				15,100,000				15,100,000
Stock Issued During Period, Shares, Share-based Compensation, Forfeited			(97,154)
Stock Granted, Value, Share-based Compensation, Forfeited			$ 0
Payments Related to Tax Withholding for Share-based Compensation				(11,800,000)				(11,800,000)
Stock Issued During Period, Shares, Employee Stock Purchase Plans			14,617
Stock Issued During Period, Value, Employee Stock Purchase Plan				1,300,000				1,300,000
Supplemental Retirement Plan Shares Issued			6,214
Shares Paid for Tax Withholding for Share Based Compensation			(126,808)
Treasury Stock, Shares, Acquired			(796,409)
Treasury Stock, Value, Acquired, Cost Method			$ (100,000)			(75,000,000.0)		(75,100,000)
Other Comprehensive Income (Loss), Net of Tax							(4,700,000)	(4,700,000)
Stockholders' Equity Attributable to Parent at Jun. 27, 2019								1,468,200,000
Common Stock, Shares, Outstanding at Jun. 27, 2019			104,855,210
Additional Paid in Capital, Common Stock at Jun. 27, 2019				1,105,500,000
Treasury Stock, Value at Jun. 27, 2019						(2,456,000,000.0)
Accumulated Other Comprehensive Income (Loss), Net of Tax at Jun. 27, 2019							(209,600,000)
Retained Earnings (Accumulated Deficit) at Jun. 27, 2019					3,027,300,000
Common Stock, Value, Outstanding at Jun. 27, 2019			$ 1,000,000.0
Stockholders' Equity Attributable to Parent at Dec. 31, 2018	1,237,600,000							1,237,600,000
Common Stock, Shares, Outstanding at Dec. 31, 2018			105,461,817
Common Stock, Value, Outstanding at Dec. 31, 2018		$ 1,100,000	$ 1,100,000
Additional Paid in Capital, Common Stock at Dec. 31, 2018	1,100,900,000			1,100,900,000
Treasury Stock, Value at Dec. 31, 2018	2,381,000,000.0					(2,381,000,000.0)
Accumulated Other Comprehensive Income (Loss), Net of Tax at Dec. 31, 2018	(196,600,000)						(196,600,000)
Retained Earnings (Accumulated Deficit) at Dec. 31, 2018	2,713,200,000				2,713,200,000
Net Income (Loss) Attributable to Parent	462,400,000
Payments Related to Tax Withholding for Share-based Compensation	$ 12,100,000
Treasury Stock, Shares, Acquired	(800,000)
Other Comprehensive Income (Loss), Net of Tax	$ 16,700,000
Stockholders' Equity Attributable to Parent at Sep. 26, 2019	1,616,500,000							1,616,500,000
Common Stock, Shares, Outstanding at Sep. 26, 2019			104,888,051
Additional Paid in Capital, Common Stock at Sep. 26, 2019	1,113,400,000			1,113,400,000
Treasury Stock, Value at Sep. 26, 2019	2,456,000,000.0					(2,456,000,000.0)
Accumulated Other Comprehensive Income (Loss), Net of Tax at Sep. 26, 2019	(188,100,000)						(188,100,000)
Retained Earnings (Accumulated Deficit) at Sep. 26, 2019	3,146,200,000				3,146,200,000
Common Stock, Value, Outstanding at Sep. 26, 2019			$ 1,000,000.0
Stockholders' Equity Attributable to Parent at Jun. 27, 2019								1,468,200,000
Common Stock, Shares, Outstanding at Jun. 27, 2019			104,855,210
Additional Paid in Capital, Common Stock at Jun. 27, 2019				1,105,500,000
Treasury Stock, Value at Jun. 27, 2019						(2,456,000,000.0)
Accumulated Other Comprehensive Income (Loss), Net of Tax at Jun. 27, 2019							(209,600,000)
Retained Earnings (Accumulated Deficit) at Jun. 27, 2019					3,027,300,000
Net Income (Loss) Attributable to Parent	131,300,000				131,300,000			131,300,000
Dividends, Common Stock, Cash					(12,400,000)			(12,400,000)
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross			37,841
Stock Granted, Value, Share-based Compensation, Gross			$ 0
Stock Issued During Period, Value, Restricted Stock Award, Gross				8,200,000				8,200,000
Stock Issued During Period, Shares, Share-based Compensation, Forfeited			(2,568)
Stock Granted, Value, Share-based Compensation, Forfeited			$ 0
Payments Related to Tax Withholding for Share-based Compensation				(300,000)				(300,000)
Shares Paid for Tax Withholding for Share Based Compensation			(2,432)
Other Comprehensive Income (Loss), Net of Tax	21,500,000						21,500,000	21,500,000
Stockholders' Equity Attributable to Parent at Sep. 26, 2019	1,616,500,000							$ 1,616,500,000
Common Stock, Shares, Outstanding at Sep. 26, 2019			104,888,051
Additional Paid in Capital, Common Stock at Sep. 26, 2019	1,113,400,000			$ 1,113,400,000
Treasury Stock, Value at Sep. 26, 2019	2,456,000,000.0					$ (2,456,000,000.0)
Accumulated Other Comprehensive Income (Loss), Net of Tax at Sep. 26, 2019	(188,100,000)						$ (188,100,000)
Retained Earnings (Accumulated Deficit) at Sep. 26, 2019	$ 3,146,200,000				$ 3,146,200,000
Common Stock, Value, Outstanding at Sep. 26, 2019			$ 1,000,000.0