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SUPPLEMENTAL CASH FLOW INFORMATION (Tables)
9 Months Ended
Sep. 30, 2023
Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract]  
Schedule of supplemental cash flow information
Nine Months Ended September 30
(in millions)20232022
Cash paid for interest, net of amount capitalized$312.7 $308.1 
Cash paid for income taxes, net84.8 62.1 
Significant non-cash investing and financing transactions:
Accounts payable related to construction costs133.3 68.7 
Receivable for the transfer of assets to WPS2.4 — 
Liabilities accrued for software licensing agreement 3.1 
Reconciliation Of Cash And Restricted Cash The following table reconciles the cash, cash equivalents, and restricted cash amounts reported within the balance sheets to the total of these amounts shown on the statements of cash flows:
(in millions)September 30, 2023December 31, 2022
Cash and cash equivalents$6.5 $6.1 
Restricted cash included in other current assets3.9 3.0 
Restricted cash included in other long-term assets0.6 38.6 
Cash, cash equivalents, and restricted cash$11.0 $47.7