| Dec 31, 2017 | Dec 31, 2018 | Dec 31, 2019 | Dec 31, 2020 | Dec 31, 2021 | Dec 31, 2022 | Dec 31, 2023 | Dec 31, 2024 |
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| Net income (loss) | - | -56 | 926 | 624 | -1,264 | -1,210 | 1,492 | 2,812 |
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| Depreciation and amortization | - | - | 1,876 | 2,048 | 2,050 | 2,047 | 1,956 | 2,631 |
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| Deferred Income Taxes and Tax Credits | - | - | 281 | 230 | -475 | -359 | 457 | 607 |
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| Gain on sale of land | - | - | - | - | - | - | 95 | - |
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| Impairment of long-lived and other assets | - | - | - | 356 | 71 | 74 | 49 | - |
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| Unrealized net (gain) loss from mark-to-market valuations of commodities | - | - | 696 | 231 | -759 | -2,510 | 490 | 1,155 |
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| Unrealized net (gain) loss from mark-to-market valuations of interest rate swaps | - | - | - | - | - | - | - | 53 |
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| Unrealized net gain from nuclear decommissioning trusts | - | - | - | - | - | - | - | 116 |
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| Change in asset retirement obligation liability | - | - | -48 | 7 | -5 | 13 | 27 | 38 |
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| Accretion Expense | - | - | 53 | 43 | 38 | 34 | 34 | 114 |
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| Impacts of Tax Receivable Agreement | - | - | 37 | -5 | -53 | 128 | 164 | 5 |
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| Gain on TRA repurchase and tender offers | - | - | - | - | - | - | - | 10 |
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| Bad debt expense | - | - | 82 | 110 | 110 | 179 | 164 | 183 |
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| Stock-based compensation | - | - | 47 | 65 | 47 | 63 | 77 | 100 |
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| Other, net | - | - | 12 | 22 | -41 | 79 | -103 | 89 |
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| Accounts receivable — trade | - | - | 88 | 33 | 228 | 852 | -214 | 242 |
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| Inventories | - | - | 44 | 59 | 100 | -36 | 174 | 31 |
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| Accounts payable — trade | - | - | -221 | -40 | 402 | 94 | -350 | 19 |
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| Commodity and other derivative contractual assets and liabilities | - | - | -98 | -27 | -32 | 228 | -82 | 175 |
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| Margin deposits, net | - | - | -170 | 20 | 1,000 | 1,874 | -1,899 | -842 |
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| Uplift securitization proceeds receivable from ERCOT | - | - | - | - | 544 | -544 | - | - |
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| Accrued interest | - | - | 80 | -20 | 13 | 16 | 46 | -18 |
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| Accrued taxes | - | - | - | - | - | - | - | -1 |
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| Accrued employee incentive | - | - | 1 | 39 | -68 | 21 | 58 | 8 |
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| Asset retirement obligation settlement | - | - | 121 | 118 | 88 | 87 | 81 | 88 |
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| Major plant outage deferral | - | - | 19 | -2 | -2 | -20 | 32 | 91 |
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| Other — net assets | - | - | 22 | -219 | 27 | 17 | -84 | 616 |
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| Other — net liabilities | - | - | 142 | -91 | 237 | -329 | -243 | -111 |
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| Cash provided by operating activities | - | 1,471 | 2,736 | 3,337 | -206 | 485 | 5,453 | 4,563 |
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| Capital expenditures, including nuclear fuel purchases and LTSA prepayments | - | 378 | 520 | 1,259 | 1,033 | 1,301 | 1,676 | 2,078 |
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| Energy Harbor acquisition (net of cash acquired) | - | - | 374 | - | - | - | - | 3,065 |
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| Proceeds from Decommissioning Trust Fund Assets | - | 252 | 431 | 433 | 483 | 670 | 601 | 2,216 |
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| Investments in nuclear decommissioning trust fund securities | - | 274 | 453 | 455 | 505 | 693 | 624 | 2,239 |
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| Proceeds from Sale of Intangible Assets | - | - | 197 | 165 | 392 | 1,275 | 500 | 773 |
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| Purchases of environmental allowances | - | - | 322 | 504 | 605 | 1,303 | 1,071 | 1,226 |
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| Proceeds from Sale of Other Productive Assets | - | - | - | 24 | 30 | 21 | 115 | 196 |
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| Proceeds from sales of transferable ITCs | - | - | - | - | - | - | - | 150 |
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| Other, net | - | -6 | -23 | -24 | 4 | 4 | 5 | 3 |
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| Cash used in investing activities | - | -101 | -1,717 | -1,572 | -1,153 | -1,239 | -2,145 | -5,276 |
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| Issuances of long-term debt | - | - | - | - | - | - | - | 3,817 |
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| Repayments/repurchases of debt | - | - | - | - | - | - | - | 2,287 |
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| Proceeds From (Repayments Of) Accounts Receivable Financing | - | - | - | - | - | - | - | 750 |
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| Proceeds from Lines of Credit | - | - | - | - | - | 1,750 | 100 | 50 |
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| Repayments under Revolving Credit Facility | - | - | - | - | - | 1,500 | 350 | 50 |
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| Proceeds from Short-Term Debt | - | - | 650 | 1,075 | 1,450 | 3,150 | - | 1,802 |
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| Repayments under Commodity-Linked Facility | - | - | 300 | 1,425 | 1,450 | 2,750 | 400 | 1,802 |
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| Debt issuance costs | - | 236 | 203 | 17 | 13 | 31 | 59 | 76 |
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| Stock repurchases | - | 763 | 656 | - | 471 | 1,949 | 1,245 | 1,266 |
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| Dividends paid to common stockholders | - | - | 243 | 266 | 290 | 302 | 313 | 305 |
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| Dividends paid to preferred stockholders | - | - | - | - | - | 151 | 150 | 173 |
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| Dividends paid to noncontrolling and redeemable noncontrolling interest holders | - | - | - | - | - | - | - | 180 |
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| Principal payment on Closing Date | - | - | - | - | - | - | - | 1,748 |
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| TRA Repurchase and tender offer — return of capital | - | - | - | - | - | - | - | 122 |
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| Other, net | - | 12 | 6 | -5 | -21 | 31 | 83 | -14 |
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| Cash used in financing activities | - | -2,723 | -1,237 | -1,796 | 2,274 | -80 | -294 | -1,604 |
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| Net change in cash, cash equivalents and restricted cash | - | - | - | - | - | - | 3,014 | -2,317 |
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