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Supplemental Cash Flow Information | 6 Months Ended
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Jun. 30, 2025
Supplemental Cash Flow Elements [Abstract] |
Supplemental Cash Flow Information | 16. Supplemental Cash Flow Information Supplemental information for the Consolidated Statements of Cash Flows for the periods was:
|  | Six Months Ended June 30, |  |  |
|  | 2025 |  | 2024 |  |  |  |  |
Cash paid during the period |  |  |  |  |  |  |  |  |
Interest and other finance charges, net of capitalized interest (a) |  | $ | 107 |  |  | $ | 124 |  |  |  |  |  |
Income taxes, net (b) |  | 70 |  |  | 9 |  |  |  |  |  |
Unrealized (gain) loss on derivative instruments included on the Statements of Cash Flows |  |  |  |  |  |  |  |  |
Commodity contracts |  | $ | 90 |  |  | $ | 44 |  |  |  |  |  |
Interest rate swap contracts (interest expense) |  | 13 |  |  | (8) |  |  |  |  |  |
Unrealized (gain) loss on derivative instruments |  | $ | 103 |  |  | $ | 36 |  |  |  |  |  |
Depreciation, amortization and accretion included on the Statements of Cash Flows |  |  |  |  |  |  |  |  |
Depreciation, amortization and accretion |  | $ | 144 |  |  | $ | 150 |  |  |  |  |  |
Other |  | (3) |  |  | (6) |  |  |  |  |  |
Depreciation, amortization and accretion |  | $ | 141 |  |  | $ | 144 |  |  |  |  |  |
Reconciliation of other non-cash operating activities |  |  |  |  |  |  |  |  |
Derivative option premium amortization |  | $ | 33 |  |  | $ | 4 |  |  |  |  |  |
Stock-based compensation |  | 27 |  |  | 16 |  |  |  |  |  |
(Gain) loss on sale of assets, net |  | (12) |  |  | — |  |  |  |  |  |
Bitcoin revenue |  | — |  |  | (71) |  |  |  |  |  |
Other |  | (14) |  |  | (7) |  |  |  |  |  |
Total |  | $ | 34 |  |  | $ | (58) |  |  |  |  |  |
Non-cash investing activities |  |  |  |  |  |  |  |  |
Capital expenditure accrual increase (decrease) |  | $ | 4 |  |  | $ | (16) |  |  |  |  |  |
__________________ (a)Capitalized interest was $2 million and $3 million for the six months ended June 30, 2025 and 2024, respectively. (b)During the six months ended June 30, 2025 and 2024, $20 million and $51 million of estimated Nuclear PTCs were utilized as a credit against our federal income tax payable, respectively. Cash and Restricted Cash “Restricted cash and cash equivalents” of $13 million and $37 million presented on the Consolidated Balance Sheets as of June 30, 2025 and December 31, 2024, respectively, were comprised of commodity exchange margin deposits.

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- Definition The entire disclosure for supplemental cash flow activities, including cash, noncash, and part noncash transactions, for the period. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 230 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/230/tableOfContent + Details
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