EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 03, 2021	Mar. 28, 2020
Postretirement Plans
Net periodic pension/postretirement benefit expense
Service cost	$ 0.0	$ 0.0
Interest cost	0.3	0.4
Amortization of unrecognized prior service credits	(1.2)	(1.2)
Total net periodic pension benefit (income) expense	(0.9)	(0.8)
UNITED STATES
Net periodic pension/postretirement benefit expense
Service cost	0.0	0.0
Interest cost	2.1	2.7
Expected return on plan assets	(2.2)	(2.4)
Total net periodic pension benefit (income) expense	(0.1)	0.3
Foreign Plan
Net periodic pension/postretirement benefit expense
Service cost	0.0	0.0
Interest cost	0.8	1.0
Expected return on plan assets	(1.4)	(1.5)
Total net periodic pension benefit (income) expense	$ (0.6)	$ (0.5)