| USD ($) $ in Millions | Dec 31, 2025 | Dec 31, 2024 | Dec 31, 2023 | Dec 31, 2022 | Dec 31, 2021 | Dec 31, 2020 | Dec 31, 2019 | Dec 31, 2018 | Dec 31, 2017 | Dec 31, 2016 | Dec 31, 2015 | Dec 31, 2014 | Dec 31, 2013 | Dec 31, 2012 | Dec 31, 2011 | Dec 31, 2010 | Dec 31, 2009 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Current assets: | |||||||||||||||||
Cash and cash equivalents | $ 2,812 | $ 1,487 | $ 2,690 | ||||||||||||||
Customer receivables, net | 4,018 | 3,336 | 3,609 | ||||||||||||||
Other receivables | 1,733 | 1,180 | 944 | ||||||||||||||
Other receivables, net of allowances of $1 and $1, respectively | - | - | - | ||||||||||||||
Materials, supplies and fuel inventory | 2,420 | 2,214 | 2,106 | ||||||||||||||
Regulatory assets | 433 | 1,417 | 1,460 | ||||||||||||||
Derivatives | 997 | 879 | 1,730 | ||||||||||||||
Contract assets | - | 252 | 1,487 | ||||||||||||||
Regulatory assets: | |||||||||||||||||
Regulatory assets: | |||||||||||||||||
Deferred clause and franchise expenses | - | - | - | ||||||||||||||
Derivatives | - | - | - | ||||||||||||||
Other | - | - | - | ||||||||||||||
Other | - | - | - | ||||||||||||||
Deferred income taxes | - | - | - | ||||||||||||||
Assets held for sale | - | - | - | ||||||||||||||
Other | 1,171 | 1,186 | 1,335 | ||||||||||||||
Total current assets | 13,584 | 11,951 | 15,361 | ||||||||||||||
Other assets: | |||||||||||||||||
PROPERTY, PLANT AND EQUIPMENT | |||||||||||||||||
Electric plant in service and other property | - | - | - | ||||||||||||||
Nuclear fuel | - | - | - | ||||||||||||||
Construction work in progress | - | - | - | ||||||||||||||
Accumulated depreciation and amortization | - | - | - | ||||||||||||||
Accumulated depreciation and amortization | - | - | - | ||||||||||||||
Property, plant and equipment – net | 156,197 | 138,852 | 125,776 | ||||||||||||||
Special use funds | 10,954 | 9,800 | 8,698 | ||||||||||||||
Investment in equity method investees | 5,528 | 6,118 | 6,156 | ||||||||||||||
Other investments ($470 and $479 related to a VIE, respectively) | - | - | - | ||||||||||||||
Prepaid benefit costs | 2,868 | 2,496 | 2,112 | ||||||||||||||
Regulatory assets | 5,639 | 4,828 | 4,801 | ||||||||||||||
Derivatives | 1,998 | 1,774 | 1,790 | ||||||||||||||
Goodwill | 4,849 | 4,866 | 5,091 | ||||||||||||||
Purchased power agreement termination | - | - | - | ||||||||||||||
Securitized storm-recovery costs | - | - | - | ||||||||||||||
Other | - | - | - | ||||||||||||||
Derivatives | - | - | - | ||||||||||||||
Regulatory Assets: | |||||||||||||||||
Deferred clause expenses | - | - | - | ||||||||||||||
Pension | - | - | - | ||||||||||||||
Unamortized loss on reacquired debt | - | - | - | ||||||||||||||
Other | - | - | - | ||||||||||||||
Other | 11,104 | 9,459 | 7,704 | ||||||||||||||
Total other assets | 199,137 | 178,193 | 162,128 | ||||||||||||||
TOTAL ASSETS | 212,721 | 190,144 | 177,489 | ||||||||||||||
Total capitalization | - | - | - | ||||||||||||||
Current liabilities: | |||||||||||||||||
Commercial paper | 1,955 | 1,670 | 4,650 | ||||||||||||||
Other short-term debt | 608 | 217 | 255 | ||||||||||||||
Notes payable | - | - | - | ||||||||||||||
Current portion of long-term debt | 3,500 | 8,061 | 6,901 | ||||||||||||||
Accounts payable | 7,583 | 6,982 | 8,504 | ||||||||||||||
Customer deposits | 709 | 694 | 638 | ||||||||||||||
Accrued interest and taxes | 1,185 | 1,016 | 970 | ||||||||||||||
Regulatory Liabilities: | |||||||||||||||||
Regulatory liabilities: | |||||||||||||||||
Deferred clause and franchise revenues | - | - | - | ||||||||||||||
Securitized storm-recovery costs | - | - | - | ||||||||||||||
Derivatives | - | - | - | ||||||||||||||
Pension | - | - | - | ||||||||||||||
Derivatives | - | - | - | ||||||||||||||
Accrued construction-related expenditures | 2,966 | 2,346 | 1,861 | ||||||||||||||
Regulatory liabilities | 356 | 279 | 340 | ||||||||||||||
Liabilities associated with assets held for sale | - | - | - | ||||||||||||||
Liabilities associated with assets held for sale | - | - | - | ||||||||||||||
Pension | - | - | - | ||||||||||||||
Derivatives | - | - | - | ||||||||||||||
Other | 2,842 | 3,017 | 2,999 | ||||||||||||||
Total current liabilities | 22,817 | 25,355 | 27,963 | ||||||||||||||
Other liabilities and deferred credits: | |||||||||||||||||
Total common shareholders' equity | 54,608 | 50,101 | 47,468 | ||||||||||||||
Long-term debt | 89,556 | 72,385 | 61,405 | ||||||||||||||
Asset retirement obligations | 3,669 | 3,671 | 3,403 | ||||||||||||||
Deferred income taxes | 12,359 | 11,749 | 10,142 | ||||||||||||||
Regulatory liabilities | 11,474 | 10,635 | 10,049 | ||||||||||||||
Derivatives | 2,148 | 2,008 | 2,741 | ||||||||||||||
Accrued asset removal costs | - | - | - | ||||||||||||||
Regulatory Liabilities: | |||||||||||||||||
Asset retirement obligation regulatory expense difference | - | - | - | ||||||||||||||
Other | - | - | - | ||||||||||||||
Deferral related to differential membership interests - VIEs | - | - | - | ||||||||||||||
Pension | - | - | - | ||||||||||||||
Other | - | - | - | ||||||||||||||
Derivatives | - | - | - | ||||||||||||||
Other | 4,219 | 3,480 | 2,762 | ||||||||||||||
Total other liabilities and deferred credits | 123,425 | 103,928 | 90,502 | ||||||||||||||
TOTAL LIABILITIES | 146,242 | 129,283 | 118,465 | ||||||||||||||
REDEEMABLE NONCONTROLLING INTERESTS – VIEs | 0 | 401 | 1,256 | ||||||||||||||
EQUITY | |||||||||||||||||
Common stock | 21 | 21 | 21 | ||||||||||||||
Additional paid-in capital | 19,494 | 17,260 | 17,365 | ||||||||||||||
Retained earnings | 35,102 | 32,946 | 30,235 | ||||||||||||||
Accumulated other comprehensive loss | (9) | (126) | (153) | ||||||||||||||
Noncontrolling interests | 11,871 | 10,359 | 10,300 | ||||||||||||||
TOTAL EQUITY | 66,479 | 60,460 | 57,768 | ||||||||||||||
TOTAL LIABILITIES, REDEEMABLE NONCONTROLLING INTERESTS AND EQUITY | $ 212,721 | $ 190,144 | $ 177,489 |