PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS - Accumulated other comprehensive income as a component of net period benefit cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Pensions | U.S.
Pension and Other Postretirement Benefit Plans Disclosure [Line Items]
Amortization of net actuarial loss (gain)		$ 12.0	$ 16.8	$ (6.9)
Amortization of prior service cost (credit)		0.0	0.0	0.0
Pensions | U.S. | Next fiscal year
Pension and Other Postretirement Benefit Plans Disclosure [Line Items]
Amortization of net actuarial loss (gain)	$ (9.2)
Amortization of prior service cost (credit)	0.0
Pensions | International
Pension and Other Postretirement Benefit Plans Disclosure [Line Items]
Amortization of net actuarial loss (gain)		(0.2)	1.4	(0.6)
Amortization of prior service cost (credit)		(0.3)	(0.5)	0.6
Pensions | International | Next fiscal year
Pension and Other Postretirement Benefit Plans Disclosure [Line Items]
Amortization of net actuarial loss (gain)	0.0
Amortization of prior service cost (credit)	0.4
Other Post-retirement Benefits
Pension and Other Postretirement Benefit Plans Disclosure [Line Items]
Amortization of net actuarial loss (gain)		0.0	0.0	0.1
Amortization of prior service cost (credit)		$ 0.0	$ 0.0	$ 0.0
Other Post-retirement Benefits | Next fiscal year
Pension and Other Postretirement Benefit Plans Disclosure [Line Items]
Amortization of net actuarial loss (gain)	0.1
Amortization of prior service cost (credit)	$ 0.0