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Segments - Schedule of Assets by Segment (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Assets	$ 7,304.3	$ 6,972.8
Total assets from reportable segments
Segment Reporting Information [Line Items]
Assets	6,212.1	6,079.5
Total assets from reportable segments | Commercial & Industrial Group
Segment Reporting Information [Line Items]
Assets	1,238.6	1,245.8
Total assets from reportable segments | Snap-on Tools Group
Segment Reporting Information [Line Items]
Assets	945.1	912.9
Total assets from reportable segments | Repair Systems & Information Group
Segment Reporting Information [Line Items]
Assets	1,645.4	1,678.1
Total assets from reportable segments | Financial Services
Segment Reporting Information [Line Items]
Assets	2,383.0	2,242.7
Corporate
Segment Reporting Information [Line Items]
Assets	1,175.1	972.9
Elimination of intersegment receivables
Segment Reporting Information [Line Items]
Assets	$ (82.9)	$ (79.6)

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- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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