CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Statement of Comprehensive Income [Abstract]
Net (Loss) Income	$ (138.6)	$ 121.9	$ (110.9)	$ 392.2
Other Comprehensive Loss Net of Tax:
Foreign Currency Translation Adjustments	(86.1)	(182.5)	(82.1)	(303.7)
Hedging Activities:
(Decrease) Increase in Fair Value of Hedging Activities, Net of Tax Effects of $(0.6) million and $(1.1) million for the Three Months Ended September 30, 2023 and September 30, 2022 and $5.9 million and $(3.3) million for the Nine Months Ended September 30, 2023 and September 30, 2022, Respectively	(1.8)	(3.5)	18.7	(10.3)
Reclassification of Gains included in Net (Loss) Income, Net of Tax Effects of $(0.7) million and $(0.5) million for the Three Months Ended September 30, 2023 and September 30, 2022 and $(0.5) million and $(4.0) million for the Nine Months Ended September 30, 2023 and September 30, 2022, Respectively	(2.4)	(1.6)	(1.6)	(12.9)
Pension and Post Retirement Plans:
Reclassification Adjustments for Pension and Post Retirement Benefits included in Net (Loss) Income, Net of Tax Effects of $(0.1) million and zero for the Three Months Ended September 30, 2023 and September 30, 2022 and $(0.4) million and $0.1 million for the Nine Months Ended September 30, 2023 and September 30, 2022, Respectively	(0.4)	0.2	(1.2)	0.5
Other Comprehensive Loss	(90.7)	(187.4)	(66.2)	(326.4)
Comprehensive (Loss) Income	(229.3)	(65.5)	(177.1)	65.8
Less: Comprehensive Income (Loss) Attributable to Noncontrolling Interests	0.5	(0.9)	1.1	(0.1)
Comprehensive (Loss) Income Attributable to Regal Rexnord Corporation	$ (229.8)	$ (64.6)	$ (178.2)	$ 65.9