CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Jan. 01, 2022	Jan. 02, 2021	Dec. 28, 2019
Statement of Comprehensive Income [Abstract]
Net Income	$ 216.1	$ 193.8	$ 242.6
Translation:
Foreign Currency Translation Adjustments	(45.5)	60.7	(9.2)
Reclassification of Foreign Currency Translation Adjustments Included in Net Income, Net of $— Million Tax Effects in 2021, 2020 and 2019	0.0	0.0	1.6
Hedging Activities:
Increase in Fair Value of Hedging Activities, Net of Tax Effects of $11.6 Million in 2021, $2.8 Million in 2020 and $4.6 Million in 2019	36.7	8.6	14.7
Reclassification of Losses (Gains) Included in Net Income, Net of Tax Effects of $(12.4) Million in 2021, $2.2 Million in 2020 and $(0.4) Million in 2019	(39.2)	6.9	(1.3)
Hedging Activities	(2.5)	15.5	13.4
Pension and Post Retirement Plans:
Decrease (Increase) in Prior Service Cost and Unrecognized Gain (Loss), Net of Tax Effects of $4.9 Million in 2021, $(0.1) Million in 2020 and $1.8 Million in 2019	15.4	(0.6)	5.7
Amortization of Prior Service Cost and Unrecognized Loss Included in Net Periodic Pension Cost, Net of Tax Effects of $0.4 Million in 2021, $0.2 Million in 2020 and $0.5 Million in 2019	1.4	0.5	1.5
Amortization of Prior Service Cost and Unrecognized Loss Included in Net Periodic Pension Cost, Net of Tax Effects of $0.4 Million in 2021, $0.2 Million in 2020 and $0.5 Million in 2019	16.8	(0.1)	7.2
Other Comprehensive (Loss) Income	(31.2)	76.1	13.0
Comprehensive Income	184.9	269.9	255.6
Less: Comprehensive Income Attributable to Noncontrolling Interest	6.8	6.1	3.1
Comprehensive Income Attributable to Regal Rexnord Corporation	$ 178.1	$ 263.8	$ 252.5