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CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS) INCOME (Parentheticals) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Statement of Comprehensive Income [Abstract]      
Postretirement plans (net of $0.0 tax provisions in each period) $ 0.0 $ 0.0 $ 0.0