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EMPLOYEE BENEFIT PLANS
 9 Months Ended
Sep. 26, 2020
Retirement Benefits [Abstract]  
EMPLOYEE BENEFIT PLANS EMPLOYEE BENEFIT PLANS
Net periodic benefit expense (income) for our pension and postretirement plans include the following components:

Domestic Pension Plans
Three months endedNine months ended
September 26,
2020		September 28,
2019		September 26,
2020		September 28,
2019
Service cost$— $— $— $— 
Interest cost2.7 3.3 8.1 9.9 
Expected return on plan assets(2.4)(2.4)(7.2)(7.3)
Net periodic pension benefit expense$0.3 $0.9 $0.9 $2.6 

Foreign Pension Plans
Three months endedNine months ended
September 26,
2020		September 28,
2019		September 26,
2020		September 28,
2019
Service cost$— $— $— $— 
Interest cost1.0 1.2 3.0 3.5 
Expected return on plan assets(1.4)(1.7)(4.4)(4.9)
Net periodic pension benefit income$(0.4)$(0.5)$(1.4)$(1.4)

Postretirement Plans
Three months endedNine months ended
September 26,
2020		September 28,
2019		September 26,
2020		September 28,
2019
Service cost$— $— $— $— 
Interest cost0.4 0.6 1.2 1.8 
Amortization of unrecognized prior service credits(1.2)(1.0)(3.6)(3.0)
Net periodic postretirement benefit income$(0.8)$(0.4)$(2.4)$(1.2)