Defined Benefit Plans (Components of Net Periodic Benefit Cost Reflected in the Consolidated Condensed Statement of Earnings) (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 03, 2020	Mar. 29, 2019
Defined Benefit Plan Disclosure [Line Items]
Total service cost	$ (6.1)	$ (7.5)
Other (expense) income, net	5.3	5.1
Net periodic benefit (cost)	(0.8)	(2.4)
Cost of sales
Defined Benefit Plan Disclosure [Line Items]
Total service cost	(1.5)	(2.0)
Selling, general and administrative expenses
Defined Benefit Plan Disclosure [Line Items]
Total service cost	$ (4.6)	$ (5.5)