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Supplemental Cash Flow Information (Tables) | 12 Months Ended
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Dec. 31, 2024
Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract] |
Schedule of supplemental cash flow information |
|  | Year Ended December 31
(in millions) |  | 2024 |  | 2023 |  | 2022
Cash paid for interest, net of amount capitalized |  | $ | 785.7 |  |  | $ | 653.4 |  |  | $ | 485.2 |
Cash paid (received) for income taxes, net (1) |  | (264.2) |  |  | (58.9) |  |  | 52.4 |
Significant non-cash investing and financing transactions: |  |  |  |  |  |
Accounts payable related to construction costs |  | 285.7 |  |  | 171.3 |  |  | 197.4 |
Common stock issued for stock-based compensation plans |  | 6.4 |  |  | — |  |  | — |
Increase in receivables related to property damage insurance proceeds |  | 2.3 |  |  | 3.5 |  |  | — |
Increase in receivables for corporate-owned life insurance proceeds |  | 5.8 |  |  | 1.4 |  |  | — |
Liabilities accrued for software licensing agreements |  | 0.2 |  |  | — |  |  | 7.4 |
(1) Cash received for income taxes in 2024 and 2023 includes $269.1 million and $75.0 million, respectively, related to 2023 and 2024 PTCs that were sold to third parties.
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 at December 31 to the total of these amounts shown on the statements of cash flows:
(in millions) |  | 2024 |  | 2023 |  | 2022
Cash and cash equivalents |  | $ | 9.8 |  |  | $ | 42.9 |  |  | $ | 28.9 |
Restricted cash included in other current assets |  | 5.3 |  |  | 70.1 |  |  | 25.6 |
Restricted cash included in other long-term assets |  | 27.1 |  |  | 52.2 |  |  | 127.7 |
Cash, cash equivalents, and restricted cash |  | $ | 42.2 |  |  | $ | 165.2 |  |  | $ | 182.2 |

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- Definition Tabular reconciliation of cash, cash equivalents, and restricted cash reported within the balance sheets to the amounts shown in the statements of cash flows. + References No definition available. + Details
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