Annual report pursuant to Section 13 and 15(d)

SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details)

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SCHEDULE II - VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Period $ 204.2 $ 205.9 $ 395.6
Charged to Costs and Expenses (15.5) (6.9) (12.4)
Charged to Other Accounts 2.7 (9.7) (198.0)
Deductions 3.8 14.9 20.7
Balance at End of Period 195.2 204.2 205.9
Trade accounts receivable      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Period 19.1 13.9 12.9
Charged to Costs and Expenses 11.4 8.5 0.3
Charged to Other Accounts 0.0 0.0 0.0
Deductions (13.8) (3.3) 0.7
Balance at End of Period 16.7 19.1 13.9
Deferred income tax asset valuation allowance      
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]      
Balance at Beginning of Period 185.1 192.0 382.7
Charged to Costs and Expenses (26.9) (15.4) (12.7)
Charged to Other Accounts 2.7 (9.7) (198.0)
Deductions 17.6 18.2 20.0
Balance at End of Period $ 178.5 $ 185.1 $ 192.0