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DERIVATIVE FINANCIAL INSTRUMENTS (Details) lb in Millions, $ in Millions		3 Months Ended		9 Months Ended
	Dec. 31, 2020 USD ($) lb	Oct. 02, 2021 USD ($)	Sep. 26, 2020 USD ($)	Oct. 02, 2021 USD ($)	Sep. 26, 2020 USD ($)
Derivative Financial Instruments
Income (loss) from discontinued operations, net of tax		$ 354.4	$ 0.1	$ 357.7	$ (1.2)
Initial Swaps | Derivative contracts designated as hedging instruments
Derivative Financial Instruments
Fixed rate		2.535%		2.535%
Additional Swaps | Derivative contracts designated as hedging instruments
Derivative Financial Instruments
Aggregate notional amount		$ 245.3		$ 245.3
Additional Swaps | Derivative contracts designated as hedging instruments | Term loan
Derivative Financial Instruments
Fixed rate		1.061%		1.061%
Swaps | Derivative contracts designated as hedging instruments
Derivative Financial Instruments
Unrealized gain (loss) recorded in AOCI	$ 5.9	$ 2.2		$ 2.2
Derivative fair value	7.8	2.9		2.9
Derivative Liability	1.4	2.4		2.4
FX Forward Contracts
Derivative Financial Instruments
Aggregate notional amount	6.3	$ 8.6		8.6
Commodity contracts
Derivative Financial Instruments
Unrealized gain (loss) recorded in AOCI	(1.5)
Income (loss) from discontinued operations, net of tax				$ 0.6
Fair value of derivative contract - asset	$ 2.4
Commodity contracts | Derivative contracts designated as hedging instruments | Transformer Solutions
Derivative Financial Instruments
Notional amount of commodity contracts (in pounds of copper) | lb	3.2

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Amount, after tax, of accumulated gain (loss) on derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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Fair value of the assets less the liabilities of a derivative or group of derivatives.

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Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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