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ACQUISITIONS AND DISCONTINUED OPERATIONS - Sale of Transformers Solutions Business (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2022	Oct. 02, 2021	Oct. 01, 2022	Oct. 02, 2021	Oct. 01, 2021
Discontinued Operations
Income (loss) from discontinued operations, net of tax	$ (9.4)	$ 316.4	$ (17.1)	$ 364.4
Discontinued operation, gain (loss) on disposal of discontinued operation, net of tax	(9.4)	351.7	(17.1)	355.0
Discontinued Operations
Discontinued Operations
Income before income tax	(11.7)	421.8	(21.1)	436.7
Income tax provision	2.3	(105.4)	4.0	(72.3)
Income (loss) from discontinued operations, net of tax	$ (9.4)	316.4	$ (17.1)	364.4
Discontinued Operations \| Transformer Solutions
Discontinued Operations
Revenues		94.4		313.5
Cost of product sold		80.5		257.2
Selling, general and administrative		10.3		28.4
Income before income tax		3.6		27.9
Income tax provision		(33.8)		(6.8)
Income (loss) from discontinued operations, net of tax		(30.2)		$ 21.1
Discontinued Operations, Disposed of by Sale \| Transformer Solutions
Discontinued Operations
Net cash proceeds received					$ 620.6
Discontinued operation, gain (loss) on disposal of discontinued operation, net of tax		$ 355.0