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EMPLOYEE BENEFIT PLANS
 6 Months Ended
Jul. 03, 2021
Retirement Benefits [Abstract]  
EMPLOYEE BENEFIT PLANS EMPLOYEE BENEFIT PLANS
Net periodic benefit (income) expense for our pension and postretirement plans include the following components:

Domestic Pension Plans
Three months endedSix months ended
July 3,
2021		June 27,
2020		July 3,
2021		June 27,
2020
Service cost$— $— $— $— 
Interest cost2.1 2.7 4.2 5.4 
Expected return on plan assets(2.2)(2.4)(4.4)(4.8)
Net periodic pension benefit (income) expense$(0.1)$0.3 $(0.2)$0.6 

Foreign Pension Plans
Three months endedSix months ended
July 3,
2021		June 27,
2020		July 3,
2021		June 27,
2020
Service cost$— $— $— $— 
Interest cost0.8 1.0 1.6 2.0 
Expected return on plan assets(1.4)(1.5)(2.8)(3.0)
Net periodic pension benefit income$(0.6)$(0.5)$(1.2)$(1.0)

Postretirement Plans
Three months endedSix months ended
July 3,
2021		June 27,
2020		July 3,
2021		June 27,
2020
Service cost$— $— $— $— 
Interest cost0.3 0.4 0.6 0.8 
Amortization of unrecognized prior service credits(1.2)(1.2)(2.4)(2.4)
Net periodic postretirement benefit income$(0.9)$(0.8)$(1.8)$(1.6)