Productivity Improvement And Restructuring - (Schedule Of Restructuring And Related Costs) (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 03, 2020	Mar. 29, 2019
Restructuring Reserve [Roll Forward]
Balance at beginning of year	$ 5.6
Costs incurred	12.3	$ 2.0
Paid/settled	(4.1)
Balance at end of year	13.8
Employee Severance and Related
Restructuring Reserve [Roll Forward]
Balance at beginning of year	5.6
Costs incurred	9.0
Paid/settled	(4.0)
Balance at end of year	10.6
Facility Exit and Related
Restructuring Reserve [Roll Forward]
Balance at beginning of year	0.0
Costs incurred	3.3
Paid/settled	(0.1)
Balance at end of year	$ 3.2