CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Millions	12 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Jan. 02, 2021
Income Statement [Abstract]
Net Sales	$ 5,217,900,000	$ 3,810,300,000	$ 2,907,000,000
Cost of Sales	3,548,200,000	2,698,700,000	2,100,400,000
Gross Profit	1,669,700,000	1,111,600,000	806,600,000
Operating Expenses	978,400,000	714,700,000	512,900,000
Goodwill Impairment	0	33,000,000.0	10,500,000
Asset Impairments	900,000	5,600,000	5,300,000
Gain on Sale of Businesses	0	0	(100,000)
Total Operating Expenses	979,300,000	753,300,000	528,600,000
Income from Operations	690,400,000	358,300,000	278,000,000.0
Other Income, net	(5,400,000)	(5,200,000)	(4,400,000)
Interest Expense	87,200,000	60,400,000	39,800,000
Interest Income	(5,200,000)	(7,400,000)	(5,900,000)
Income before Taxes	613,800,000	310,500,000	248,500,000
Provision for Income Taxes	118,900,000	74,700,000	56,300,000
Net Income	494,900,000	235,800,000	192,200,000
Less: Net Income Attributable to Noncontrolling Interests	6,000,000.0	6,200,000	4,500,000
Net Income Attributable to Regal Rexnord Corporation	$ 488,900,000	$ 229,600,000	$ 187,700,000
Earnings Per Share Attributable to Regal Rexnord Corporation:
Basic (in dollars per share)	$ 7.33	$ 4.85	$ 4.62
Assuming Dilution (in dollars per share)	$ 7.29	$ 4.81	$ 4.60
Weighted Average Number of Shares Outstanding:
Basic (in shares)	66.7	47.3	40.6
Assuming Dilution (in shares)	67.1	47.7	40.8