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SUPPLEMENTAL CASH FLOW INFORMATION (Tables)
 3 Months Ended
Mar. 31, 2025
Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract]  
Schedule of supplemental cash flow information
Three Months Ended March 31
(in millions)20252024
Cash paid for interest, net of amount capitalized$132.4 $158.6 
Cash received for income taxes, net (1)
— (83.0)
Significant non-cash investing and financing transactions:
Accounts payable related to construction costs146.7 147.2 
Common stock issued for stock-based compensation plans3.2 6.2 
Increase in receivable for corporate-owned life insurance proceeds4.0 — 

(1)    Cash received for income taxes in the first quarter of 2024 includes $83.4 million related to 2023 PTCs that were sold to a third party.
Reconciliation of cash, cash equivalents, 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)March 31, 2025December 31, 2024
Cash and cash equivalents$82.2 $9.8 
Restricted cash included in other current assets26.9 5.3 
Restricted cash included in other long-term assets34.3 27.1 
Cash, cash equivalents, and restricted cash$143.4 $42.2