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VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Allowance for credit losses      
Movement in Valuation Allowances and Reserves      
Balance at Beginning of Period $ 11.7 $ 15.7 $ 16.4
Charged to Costs and Expenses 2.0 0.9 1.2
Charged to Other Accounts 0.0 0.1 0.6
Deductions (1.9) (5.0) (2.5)
Balance at End of Period 11.8 11.7 15.7
Tax valuation allowance      
Movement in Valuation Allowances and Reserves      
Balance at Beginning of Period 99.1 82.5 71.6
Charged to Costs and Expenses 0.0 3.0 12.4
Charged to Other Accounts 0.1 14.2 0.0
Deductions (9.0) (0.6) (1.5)
Balance at End of Period $ 90.2 $ 99.1 $ 82.5