Condensed Consolidated Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 1,151	$ 761
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation, amortization and accretion (including amortization of nuclear fuel)	1,534	1,344
Equity component of AFUDC	(55)	(46)
(Gains) Losses on sales of Commercial Renewables Disposal Groups	(10)	220
Gains on sales of other assets	(12)	(7)
Impairment of assets and other charges	1	8
Deferred income taxes	149	90
Equity in earnings of unconsolidated affiliates	(17)	(20)
Payments for asset retirement obligations	(115)	(117)
Provision for rate refunds	(4)	(33)
(Increase) decrease in
Net realized and unrealized mark-to-market and hedging transactions	(33)	5
Receivables	226	754
Inventory	11	(275)
Other current assets	329	262
Increase (decrease) in
Accounts payable	(553)	(1,193)
Taxes accrued	(110)	(148)
Other current liabilities	(208)	(266)
Other assets	41	(13)
Other liabilities	149	157
Net cash provided by operating activities	2,474	1,483
CASH FLOWS FROM INVESTING ACTIVITIES
Capital expenditures	(3,208)	(3,146)
Contributions to equity method investments	(7)	(6)
Purchases of debt and equity securities	(946)	(866)
Proceeds from sales and maturities of debt and equity securities	985	882
Net proceeds from the sales of other assets	0	76
Other	166	149
Net cash used in investing activities	(3,342)	(3,209)
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from the issuance of long-term debt	3,481	4,085
Issuance of common stock	4	0
Payments for the redemption of long-term debt	(1,392)	(1,380)
Proceeds from the issuance of short-term debt with original maturities greater than 90 days	294	2
Payments for the redemption of short-term debt with original maturities greater than 90 days	(535)	(50)
Notes payable and commercial paper	50	(217)
Contributions from noncontrolling interests	0	206
Dividends paid	(806)	(815)
Other	(67)	(84)
Net cash provided by financing activities	1,029	1,747
Net increase in cash, cash equivalents and restricted cash	161	21
Cash, cash equivalents and restricted cash at beginning of period	357	603
Cash, cash equivalents and restricted cash at end of period	518	624
Significant non-cash transactions:
Accrued capital expenditures	$ 1,615	$ 1,366