Pension Plans - (Tables)

6 Months Ended

Jun. 27, 2020

Retirement Benefits [Abstract]

Net Periodic Pension Cost

Snap-on’s net periodic pension cost included the following components: 

	Three Months Ended				Six Months Ended
(Amounts in millions)	June 27, 2020		June 29, 2019		June 27, 2020		June 29, 2019
Service cost	$	6.6	$	5.8	$	13.5	$	11.8
Interest cost	12.3		14.1		24.4		28.2
Expected return on plan assets	(23.7)		(23.1)		(47.4)		(45.5)
Amortization of unrecognized loss	8.8		6.3		17.2		12.5
Amortization of prior service credit	—		(0.2)		—		(0.4)
Net periodic pension cost	$	4.0	$	2.9	$	7.7	$	6.6