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Postretirement Health Care Plans
9 Months Ended
Sep. 26, 2020
Postemployment Benefits [Abstract]  
Postretirement Health Care Plans Postretirement Health Care Plans
Snap-on’s net periodic postretirement health care cost included the following components: 
Three Months EndedNine Months Ended
(Amounts in millions)September 26, 2020September 28, 2019September 26, 2020September 28, 2019
Interest cost$0.4 $0.4 $1.1 $1.4 
Expected return on plan assets(0.2)(0.1)(0.5)(0.5)
Amortization of unrecognized gain— (0.2)— (0.6)
Net periodic postretirement health care cost$0.2 $0.1 $0.6 $0.3 

The components of net periodic postretirement health care cost are included in “Other income (expense) - net” on the accompanying Condensed Consolidated Statements of Earnings. See Note 17 for additional information on other income (expense) - net.