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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)
$ in Millions
 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
CASH FLOWS FROM OPERATING ACTIVITIES    
Net income $ 1,438 $ 1,752
Adjustments to reconcile net income to net cash provided by operating activities:    
Depreciation and amortization 1,293 1,197
Deferred income taxes and investment tax credits 128 (34)
Equity earnings (718) (781)
Share-based compensation expense 11 41
Fixed-price contracts and other derivatives 82 28
Bad debt expense 37 94
Other (36) (5)
Net change in working capital components (498) (99)
Distributions from investments 516 405
Changes in other noncurrent assets and liabilities, net 13 (78)
Net cash provided by operating activities 2,266 2,520
CASH FLOWS FROM INVESTING ACTIVITIES    
Expenditures for property, plant and equipment (4,640) (3,830)
Expenditures for investments (972) (387)
Purchases of nuclear decommissioning and other trust assets (531) (401)
Proceeds from sales of nuclear decommissioning and other trust assets 580 442
Other 0 8
Net cash used in investing activities (5,563) (4,168)
CASH FLOWS FROM FINANCING ACTIVITIES    
Common dividends paid (787) (741)
Preferred dividends paid (22) (22)
Issuances of common stock 19 18
Repurchases of common stock (58) (40)
Issuances of debt (maturities greater than 90 days) 5,458 3,812
Payments on debt (maturities greater than 90 days) and finance leases (3,411) (1,197)
Increase (decrease) in short-term debt, net 682 (817)
Advances from unconsolidated affiliates 44 45
Contributions from noncontrolling interests 83 786
Distributions to noncontrolling interests (91) (203)
Other (26) (23)
Net cash provided by financing activities 1,891 1,618
Effect of exchange rate changes on cash, cash equivalents and restricted cash 1 (8)
Less: Increase in cash held for sale (1) 0
Decrease in cash, cash equivalents and restricted cash (1,406) (38)
Cash, cash equivalents and restricted cash, January 1 1,589 389
Cash, cash equivalents and restricted cash, June 30 183 351
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION    
Interest payments, net of amounts capitalized 691 574
Income tax payments, net of refunds 290 233
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES    
Repayments of advances from unconsolidated affiliate in lieu of distributions 45 62
Accrued capital expenditures for PP&E 1,167 885
Increase (decrease) in ARO capitalized to PP&E 60 (2)
Increase in finance lease obligations capitalized to PP&E 31 12
Unamortized debt issuance costs reclassified from noncurrent asset to long-term debt 37 2
Common dividends issued in stock 26 27
Preferred stock    
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES    
Dividends declared but not paid 11 11
Common stock    
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES    
Dividends declared but not paid $ 421 $ 393