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Postretirement Health Care Plans - (Tables)
3 Months Ended
Apr. 03, 2021
Postemployment Benefits [Abstract]  
Net Periodic Postretirement Health Care Cost
Snap-on’s net periodic postretirement health care cost included the following components: 
Three Months Ended
(Amounts in millions)April 3, 2021March 28, 2020
Interest cost$0.3 $0.4 
Expected return on plan assets(0.2)(0.2)
Net periodic postretirement health care cost$0.1 $0.2