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SUPPLEMENTAL CASH FLOW INFORMATION - SUPPLEMENTAL INFORMATION (Details) - USD ($) $ in Millions | 6 Months Ended
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Jun. 30, 2023 | Jun. 30, 2022
Supplemental cash flow information |  |
Cash paid for interest, net of amount capitalized | $ 312.8 | $ 234.9
Cash paid for income taxes, net | 15.8 | 37.3
Significant non-cash investing and financing transactions: |  |
Accounts payable related to construction costs | 156.7 | 210.2
Increase in receivables related to insurance proceeds | 5.6 | 0.0
Liabilities accrued for software licensing agreement | $ 0.0 | $ 7.4

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