RESTRUCTURING ACTIVITIES (Reconciliation Of Expenses By Type) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019	Sep. 26, 2020	Sep. 28, 2019
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	$ 5.8	$ 7.3	$ 18.7	$ 13.2
Total restructuring and restructuring-related costs	5.8	7.3	18.7	13.2
Commercial Systems
Restructuring Cost and Reserve [Line Items]
Total restructuring and restructuring-related costs	0.7	2.5	4.8	4.8
Industrial Systems
Restructuring Cost and Reserve [Line Items]
Total restructuring and restructuring-related costs	2.3	3.1	5.2	5.5
Climate Solutions
Restructuring Cost and Reserve [Line Items]
Total restructuring and restructuring-related costs	0.8	0.8	3.2	1.5
Power Transmission Solutions
Restructuring Cost and Reserve [Line Items]
Total restructuring and restructuring-related costs	2.0	0.9	5.5	1.4
Employee Termination Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	2.0	4.9	7.9	6.8
Facility Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	4.1	2.4	10.8	6.4
Other Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	(0.3)	0.0	0.0	0.0
Cost of Sales
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	4.0	4.4	13.1	6.1
Cost of Sales | Employee Termination Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	1.5	2.5	4.4	2.9
Cost of Sales | Facility Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	2.5	1.9	8.4	3.2
Cost of Sales | Other Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	0.0	0.0	0.3	0.0
Operating Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	1.8	2.9	5.6	7.1
Operating Expenses | Employee Termination Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	0.5	2.4	3.5	3.9
Operating Expenses | Facility Related Costs
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	1.6	0.5	2.4	3.2
Operating Expenses | Other Expenses
Restructuring Cost and Reserve [Line Items]
Restructuring Costs	$ (0.3)	$ 0.0	$ (0.3)	$ 0.0