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RETIREMENT PLANS AND OTHER BENEFITS - Change in fair value measurements of level 3 investments (Details) - Non-U.S. Plans - Pension Plan - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Change in fair value measurements of Level 3 investments [Roll Forward]    
Fair value of plan assets at beginning of year $ 139.9 $ 122.1
Foreign exchange effect (2.4) 5.9
Fair value of plan assets at end of year 145.2 139.9
Fair Value, Inputs, Level 3    
Change in fair value measurements of Level 3 investments [Roll Forward]    
Fair value of plan assets at beginning of year 35.3 35.5
Actuarial gain (loss) 1.4 0.8
Interest Income 0.3 0.3
Transfers into (out of) Level 3 (2.4) (2.4)
Foreign exchange effect (0.5) 1.1
Fair value of plan assets at end of year $ 34.1 $ 35.3