PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS - Components Of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Pensions | U.S.
Pension and Other Postretirement Benefit Plans Disclosure [Line Items]
Service cost	$ 0.0	$ 0.0	$ 0.0
Interest cost	18.0	22.2	25.6
Expected return on plan assets	(31.9)	(45.4)	(41.6)
Settlement cost	2.8	1.4	0.0
Curtailment benefit	0.0	0.0	0.0
Amortization of net actuarial loss (gain)	16.8	6.9	1.8
Amortization of prior service cost (credit)	0.0	0.0	0.0
Net periodic benefit cost (income)	5.7	(14.9)	(14.2)
Net actuarial gain (loss) arising during period	(22.1)	(85.1)	(50.2)
Prior service (cost) credit arising during period	0.0	0.0	0.0
Settlements and curtailments	(2.8)	1.4	0.0
Amortization of actuarial gain (loss)	(16.8)	6.9	1.8
Amortization of prior service cost (credit)	0.0	0.0	0.0
Other	0.0	0.0	0.0
Total recognized in other comprehensive income (loss)	(41.7)	(76.8)	(48.4)
Pensions | International
Pension and Other Postretirement Benefit Plans Disclosure [Line Items]
Service cost	10.0	10.4	7.0
Interest cost	9.8	11.3	13.7
Expected return on plan assets	(25.0)	(36.5)	(31.3)
Settlement cost	0.0	0.5	0.0
Curtailment benefit	0.4	0.0	0.0
Amortization of net actuarial loss (gain)	1.4	0.6	0.3
Amortization of prior service cost (credit)	0.5	0.6	0.4
Net periodic benefit cost (income)	(2.9)	(13.1)	(9.9)
Net actuarial gain (loss) arising during period	(58.4)	(26.8)	(37.5)
Prior service (cost) credit arising during period	0.6	0.0	(0.9)
Settlements and curtailments	(0.4)	0.4	0.0
Amortization of actuarial gain (loss)	(1.4)	0.6	0.3
Amortization of prior service cost (credit)	(0.5)	0.6	0.4
Other	0.0	(7.5)	(1.5)
Total recognized in other comprehensive income (loss)	(60.1)	(32.7)	(39.2)
Other Post-retirement Benefits
Pension and Other Postretirement Benefit Plans Disclosure [Line Items]
Service cost	0.0	0.0	0.0
Interest cost	0.3	0.4	0.5
Expected return on plan assets	0.0	0.0	0.0
Settlement cost	0.0	0.0	0.0
Curtailment benefit	0.0	0.0	0.0
Amortization of net actuarial loss (gain)	0.1	0.1	0.0
Amortization of prior service cost (credit)	0.0	0.0	0.0
Net periodic benefit cost (income)	0.4	0.5	0.5
Net actuarial gain (loss) arising during period	0.0	0.0	0.0
Prior service (cost) credit arising during period	0.0	0.0	0.0
Settlements and curtailments	0.0	0.0	0.0
Amortization of actuarial gain (loss)	0.0	(0.1)	0.0
Amortization of prior service cost (credit)	0.0	0.0	0.0
Other	(0.9)	(0.6)	1.5
Total recognized in other comprehensive income (loss)	$ (0.9)	$ (0.7)	$ 1.5