Defined Benefit Plans (Components of Net Periodic Benefit Cost Reflected in the Consolidated Condensed Statement of Earnings) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 28, 2019	Jun. 29, 2018	Jun. 28, 2019	Jun. 29, 2018
Defined Benefit Plan Disclosure [Line Items]
Total service cost	$ (9.8)	$ (11.2)	$ (19.6)	$ (22.1)
Other income, net	6.3	8.3	11.5	16.1
Net periodic benefit cost	(3.5)	(2.9)	(8.1)	(6.0)
Cost of sales
Defined Benefit Plan Disclosure [Line Items]
Total service cost	(2.2)	(3.3)	(4.2)	(5.4)
Selling, general and administrative expenses
Defined Benefit Plan Disclosure [Line Items]
Total service cost	$ (7.6)	$ (7.9)	$ (15.4)	$ (16.7)