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FAIR VALUE MEASUREMENTS - LEVEL 3 RECONCILIATION (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Level 3 rollforward    
Balance at the beginning of the period $ 7.8 $ 2.4
Purchases 0.3 0.0
Realized and unrealized net losses included in earnings (0.3) 0.0
Settlements (4.8) (1.4)
Balance at the end of the period 3.0 1.0
Unrealized net losses included in earnings attributable to level 3 derivatives held at the end of the reporting period $ (0.1) $ 0.0