| 2010年 12月31日 | 2012年 12月31日 | 2013年 12月31日 | 2014年 12月31日 | 2015年 12月31日 | 2016年 12月31日 | 2017年 12月31日 | 2018年 12月31日 | 2019年 12月31日 | 2020年 12月31日 | 2021年 12月31日 | 2022年 12月31日 | 2023年 12月31日 | 2024年 12月31日 | |
| Net income | 733 | 920 | 1,088 | 1,262 | 1,448 | 1,519 | 351 | 1,126 | 2,362 | 4,105 | 1,463 | 2,285 | 3,618 | 3,500 |
| Depreciation and amortization | 867 | 1,090 | 1,113 | 1,156 | 1,250 | 1,312 | 1,490 | 1,549 | 1,569 | 1,666 | 1,855 | 2,019 | 2,227 | 2,437 |
| Deferred Income Taxes and Tax Credits | 48 | -43 | 334 | 146 | 239 | 217 | 1,160 | -182 | 189 | 159 | -78 | 392 | 249 | -20 |
| Equity earnings | 22 | -7 | 31 | 81 | 104 | 6 | 34 | -236 | 30 | 294 | 614 | 666 | 1,481 | 1,609 |
| Share-based compensation expense | - | - | - | - | - | - | - | 83 | 75 | 71 | 63 | 71 | 80 | 86 |
| Fixed-price contracts and other derivatives | - | - | - | - | - | - | - | - | - | - | -206 | -863 | 666 | 197 |
| Bad debt expense | - | - | - | - | - | - | - | - | - | - | - | - | 458 | 209 |
| Other | - | 34 | 13 | 108 | 75 | -63 | -149 | -315 | -26 | -132 | -167 | -154 | 11 | -20 |
| Accounts receivable | -89 | -36 | 273 | -44 | 99 | 42 | -17 | 144 | 91 | 315 | 599 | 976 | -168 | -118 |
| Due to/from unconsolidated affiliates, net | - | - | - | - | - | - | - | - | - | - | 1 | 31 | -26 | -30 |
| Income taxes receivable/payable, net | - | - | - | - | - | - | - | - | -166 | -94 | -38 | -29 | 142 | -49 |
| Inventories | 62 | 78 | -116 | 133 | -65 | 20 | 49 | -23 | 22 | 35 | 87 | 17 | 80 | 74 |
| Other current assets | -310 | -180 | -15 | 10 | 18 | 41 | 12 | 81 | 88 | -38 | 220 | 1,608 | -11 | 30 |
| Accounts payable | 79 | 3 | -28 | 109 | -157 | 122 | 83 | 92 | 12 | 73 | 263 | 430 | -270 | -131 |
| Regulatory balancing accounts, net | 155 | 291 | 198 | 317 | -586 | -198 | -108 | -263 | -13 | 231 | -249 | -36 | -260 | 456 |
| Reserve for Aliso Canyon costs | - | - | - | - | - | - | - | - | - | 141 | 1,532 | -1,851 | -98 | -12 |
| Other current liabilities | -179 | -445 | -215 | -138 | 13 | -55 | -51 | -119 | -99 | -127 | -105 | 228 | 1,270 | 142 |
| Insurance receivable for Aliso Canyon costs | - | - | - | - | - | 281 | -188 | 43 | -122 | 106 | -85 | -360 | - | - |
| Distributions from investments | - | - | - | - | - | - | - | - | - | 651 | 941 | 854 | 912 | 1,093 |
| Changes in other noncurrent assets and liabilities, net | - | - | - | - | - | - | - | -14 | 152 | -56 | 496 | 565 | 594 | 150 |
| Net cash provided by operating activities | 2,154 | 2,018 | 1,784 | 2,161 | 2,905 | 2,319 | 3,625 | 3,447 | 3,088 | 2,591 | 3,842 | 1,142 | 6,218 | 4,907 |
| Expenditures for property, plant and equipment | 2,062 | 2,956 | 2,572 | 3,123 | 3,156 | 4,214 | 3,949 | 3,784 | 3,708 | 4,676 | 5,015 | 5,357 | 8,397 | 8,215 |
| Expenditures for investments | - | - | - | - | - | - | - | - | - | 652 | 633 | 376 | 382 | 988 |
| Return on investments | - | - | - | 13 | 15 | 25 | 26 | 10 | - | 761 | 366 | - | - | 9 |
| Purchases of nuclear decommissioning and other trust assets | - | - | - | - | - | - | - | - | 914 | 1,439 | 961 | - | 610 | 889 |
| Proceeds from Decommissioning Trust Fund Assets | - | - | - | - | - | - | - | - | 914 | 1,439 | 961 | - | 661 | 942 |
| Repayments of advances to unconsolidated affiliates | - | - | - | - | - | - | - | - | 3 | 7 | 38 | 626 | - | - |
| Other | 11 | 11 | 12 | -35 | -1 | - | 2 | -31 | -30 | -15 | -11 | -6 | -9 | -23 |
| Net cash used in investing activities | -1,283 | -3,158 | -1,689 | -3,342 | -2,885 | -4,886 | -4,700 | -12,557 | -4,593 | 553 | -5,508 | -5,039 | -8,716 | -9,118 |
| Common dividends paid | 364 | 550 | 606 | 598 | 628 | 686 | 755 | 877 | 993 | 1,174 | 1,331 | 1,430 | 1,483 | 1,499 |
| Preferred dividends paid | - | - | - | - | - | - | - | 89 | 142 | 157 | 99 | 44 | 44 | 44 |
| Issuances of common stock, net | 40 | 78 | 62 | 56 | 52 | 51 | 47 | 2,272 | 1,830 | 11 | 5 | 4 | 145 | 1,219 |
| Repurchases of common stock | 502 | 16 | 45 | 38 | 74 | 56 | 15 | 21 | 26 | 566 | 339 | 478 | 32 | 43 |
| Proceeds from Issuance of Long-Term Debt | - | - | - | - | - | 2,951 | 4,509 | 9,174 | 4,296 | 6,051 | 3,773 | 9,984 | 7,669 | 8,674 |
| Payments on debt (maturities greater than 90 days) and finance leases | - | - | - | - | - | - | - | - | - | - | - | - | 6,294 | 3,339 |
| (Decrease) increase in short-term debt, net | 568 | -47 | 256 | 412 | -622 | 692 | -36 | -124 | 656 | -1,759 | 1,913 | -1,266 | 552 | -557 |
| Advances from unconsolidated affiliates | - | - | - | - | - | - | 35 | - | 155 | 64 | 40 | 28 | 31 | 85 |
| Proceeds from sales of noncontrolling interests, net | - | - | 574 | - | - | 1,692 | 196 | 90 | 5 | 26 | - | - | - | - |
| Distributions to noncontrolling interests | - | - | - | - | - | - | - | - | - | - | - | - | 730 | 297 |
| Proceeds from Noncontrolling Interests | - | - | - | - | - | - | - | - | 98 | 1 | 3,206 | 1,732 | 1,219 | 1,235 |
| Termination of interest rate and settlement of cross-currency swaps | - | - | - | - | - | - | - | - | - | - | - | - | - | -46 |
| Other | -21 | -21 | -40 | -37 | -17 | -10 | -43 | -90 | -49 | -50 | -199 | -35 | -85 | -56 |
| Net cash provided by financing activities | -69 | 1,355 | 338 | 854 | -173 | 2,513 | 1,007 | 9,006 | 1,475 | -2,373 | 1,260 | 3,779 | 2,419 | 5,424 |
| Effect of exchange rate changes on cash, cash equivalents and restricted cash | - | - | - | - | - | - | 7 | -14 | - | - | 2 | -1 | 6 | -13 |
| Increase (decrease) in cash, cash equivalents and restricted cash | - | - | - | - | - | - | -61 | -118 | -29 | 768 | -404 | -119 | -73 | 1,200 |
| Interest payments, net of amounts capitalized | 415 | 458 | 544 | 536 | 537 | 532 | 619 | 812 | 1,051 | 1,046 | 1,163 | 1,014 | 1,172 | 1,205 |
| Income Taxes Paid, Net | 68 | 130 | 120 | 102 | 67 | 160 | 172 | 174 | 254 | 1,385 | 230 | 284 | 197 | 289 |
| Accrued Interest Receivable Added to Note Receivable | - | - | - | - | - | - | - | - | - | - | - | - | - | 17 |
| Noncash Payments Of Advances To Affiliates | - | - | - | - | - | - | - | - | - | - | 45 | 32 | 36 | 62 |
| Accrued capital expenditures for PP&E | - | 357 | 437 | 433 | 566 | 626 | 562 | 459 | 515 | 535 | 591 | 590 | 1,052 | 1,181 |
| Capital Expenditures Reclassified | - | - | - | - | - | - | - | - | - | - | - | - | - | 53 |
| Increase in finance lease obligations capitalized to PP&E | - | - | - | - | - | - | - | - | 38 | 77 | 43 | 57 | 57 | 41 |
| Amortized debt issuance costs capitalized to PP&E | - | - | - | - | - | - | - | - | - | - | - | - | - | 13 |
| Unamortized Debt Issuance Costs Reclassified | - | - | - | - | - | - | - | - | - | - | - | - | - | 27 |
| Interest Payable Capitalized | - | - | - | - | - | - | - | - | - | - | - | - | - | 16 |
| Increase in ARO capitalized to PP&E | - | - | - | - | - | - | - | - | - | 142 | 153 | 91 | 33 | 1 |
| Dividends, Common Stock, Stock | - | - | - | - | - | - | - | - | - | - | - | - | - | 54 |
| Net exercise of stock options | - | - | - | - | - | - | - | - | - | - | - | - | - | 9 |
| Contributions from NCI | - | - | - | - | - | - | - | - | - | - | - | - | 200 | - |