Acquisitions and Divestitures - Schedule of Altra Pro Forma Information (Details) - Altra Merger Agreement - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Net Sales	$ 6,701.8	$ 7,163.4
Net Income Attributable to Regal Rexnord Corporation	$ 50.1	$ 131.1
Basic (in dollars per share)	$ 0.76	$ 1.97
Assuming Diluted (in dollars per share)	$ 0.75	$ 1.95

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 805
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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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-URI https://asc.fasb.org/1943274/2147479328/805-10-50-2

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