FAIR VALUE - Changes in Liability and Assets (Details) - Balcke Durr Business - Discontinued Operations, Disposed of by Sale - USD ($) $ in Millions	9 Months Ended
	Sep. 26, 2020	Sep. 28, 2019
Guarantees and Bonds
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of year	$ 2.0	$ 4.4
Reduction / Amortization for the period	(0.3)	(2.2)
Impact of changes in foreign currency rates	0.1	(0.1)
Balance at end of period	1.8	2.1
Indemnification Agreement
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Balance at beginning of year	0.3	1.2
Reduction / Amortization for the period	(0.2)	(0.7)
Impact of changes in foreign currency rates	0.0	0.0
Balance at end of period	$ 0.1	$ 0.5