Condensed Consolidated Statements of Equity (Unaudited) - USD ($) $ in Millions	Total	Cumulative Effect, Period of Adoption, Adjustment	Cumulative Effect, Period of Adoption, Adjusted Balance	Common Stock	Common Stock Cumulative Effect, Period of Adoption, Adjusted Balance	Additional Paid-in Capital	Additional Paid-in Capital Cumulative Effect, Period of Adoption, Adjusted Balance	Retained Earnings	Retained Earnings Cumulative Effect, Period of Adoption, Adjustment	Retained Earnings Cumulative Effect, Period of Adoption, Adjusted Balance	Accumulated Other Comprehensive Loss	Accumulated Other Comprehensive Loss Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Loss Cumulative Effect, Period of Adoption, Adjusted Balance	Treasury Stock	Treasury Stock Cumulative Effect, Period of Adoption, Adjusted Balance	Noncontrolling Interests	Noncontrolling Interests Cumulative Effect, Period of Adoption, Adjusted Balance
Beginning balance at Dec. 29, 2018	$ 3,118.6		$ 3,118.6	$ 67.4	$ 67.4	$ 359.4	$ 359.4	$ 4,257.6	$ 45.9	$ 4,303.5	$ (462.2)	$ (45.9)	$ (508.1)	$ (1,123.4)	$ (1,123.4)	$ 19.8	$ 19.8
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	367.0							358.3								8.7
Other comprehensive income (loss)	7.4										7.4
Cash dividends	(105.3)							(105.3)
Stock compensation plans	36.8					12.3								24.5
Share repurchases	(107.5)													(107.5)
Other	(8.3)							(0.4)								(7.9)
Ending balance at Jun. 29, 2019	3,308.7			67.4		371.7		4,556.1			(500.7)			(1,206.4)		20.6
Beginning balance at Mar. 30, 2019	3,217.8			67.4		361.3		4,428.4			(496.4)			(1,163.1)		20.2
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	184.9							180.4								4.5
Other comprehensive income (loss)	(4.3)										(4.3)
Cash dividends	(52.5)							(52.5)
Stock compensation plans	27.2					10.4								16.8
Share repurchases	(60.1)													(60.1)
Other	(4.3)							(0.2)								(4.1)
Ending balance at Jun. 29, 2019	3,308.7			67.4		371.7		4,556.1			(500.7)			(1,206.4)		20.6
Beginning balance at Dec. 28, 2019	3,430.8		$ 3,424.7	67.4	$ 67.4	379.1	$ 379.1	4,779.7		$ 4,773.6	(507.9)		$ (507.9)	(1,309.2)	$ (1,309.2)	21.7	$ 21.7
Beginning balance (Accounting Standards Update 2016-13) at Dec. 28, 2019		$ (6.1)							$ (6.1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	247.9							238.4								9.5
Other comprehensive income (loss)	(6.5)										(6.5)
Cash dividends	(117.7)							(117.7)
Stock compensation plans	20.1					4.0								16.1
Share repurchases	(50.5)													(50.5)
Other	(9.4)							(0.1)								(9.3)
Ending balance at Jun. 27, 2020	3,508.6			67.4		383.1		4,894.2			(514.4)			(1,343.6)		21.9
Beginning balance at Mar. 28, 2020	3,353.4			67.4		378.4		4,852.0			(609.9)			(1,356.6)		22.1
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	105.9							101.2								4.7
Other comprehensive income (loss)	95.5										95.5
Cash dividends	(58.7)							(58.7)
Stock compensation plans	17.7					4.7								13.0
Other	(5.2)							(0.3)								(4.9)
Ending balance at Jun. 27, 2020	$ 3,508.6			$ 67.4		$ 383.1		$ 4,894.2			$ (514.4)			$ (1,343.6)		$ 21.9