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PENSION AND POST-RETIREMENT BENEFITS - Fair Value of Pension Plan Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 474.0 $ 463.0  
Pension Plans      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 474.0 463.0 $ 462.4
U.S. Plans | Pension Plans      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets 391.7 377.6  
International Plans | Pension Plans      
Defined Benefit Plan Disclosure [Line Items]      
Fair value of plan assets $ 82.3 $ 85.4