CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 3,618	$ 2,285	$ 1,463
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	2,227	2,019	1,855
Deferred income taxes and investment tax credits	249	392	(78)
Gain on sale of assets	(1)	0	(36)
Equity earnings	(1,481)	(1,498)	(1,343)
Foreign currency transaction (gains) losses, net	(2)	24	18
Share-based compensation expense	80	71	63
Fixed-price contracts and other derivatives	(666)	863	206
Bad debt expense	458	122	55
Other	(11)	32	115
Net change in working capital components:
Accounts receivable	168	(976)	(599)
Due to/from unconsolidated affiliates, net	26	(31)	(1)
Income taxes receivable/payable, net	142	(29)	(38)
Inventories	(80)	(17)	(87)
Other current assets	11	(1,608)	(220)
Accounts payable	(270)	430	263
Regulatory balancing accounts, net	260	36	249
Reserve for Aliso Canyon costs	(98)	(1,851)	1,532
Other current liabilities	1,270	228	(105)
Insurance receivable for Aliso Canyon costs	0	360	85
Distributions from investments	912	854	941
Changes in other noncurrent assets and liabilities, net	(594)	(564)	(496)
Net cash provided by operating activities	6,218	1,142	3,842
CASH FLOWS FROM INVESTING ACTIVITIES
Expenditures for property, plant and equipment	(8,397)	(5,357)	(5,015)
Expenditures for investments and acquisitions	(382)	(376)	(633)
Proceeds from sale of assets	3	0	38
Distributions from investments	0	0	366
Purchases of nuclear decommissioning trust assets	(610)	(700)	(961)
Proceeds from sales of nuclear decommissioning trust assets	661	762	961
Advances to unconsolidated affiliates	0	0	(8)
Repayments of advances to unconsolidated affiliates	0	626	38
Disbursement for note receivable	0	0	(305)
Other	9	6	11
Net cash used in investing activities	(8,716)	(5,039)	(5,508)
CASH FLOWS FROM FINANCING ACTIVITIES
Common dividends paid	(1,483)	(1,430)	(1,331)
Preferred dividends paid	(44)	(44)	(99)
Issuances of common stock, net	145	4	5
Repurchases of common stock	(32)	(478)	(339)
Issuances of debt (maturities greater than 90 days)	7,669	9,984	3,773
Payments on debt (maturities greater than 90 days) and finance leases	(6,294)	(4,510)	(5,489)
Increase (decrease) in short-term debt, net	552	(1,266)	1,913
Advances from unconsolidated affiliates	31	28	40
Proceeds from sales of noncontrolling interests, net	1,219	1,732	3,206
Purchases of noncontrolling interests	0	0	(224)
Distributions to noncontrolling interests	(730)	(237)	0
Contributions from noncontrolling interests	1,570	31	4
Settlement of cross-currency swaps	(99)	0	0
Other	(85)	(35)	(199)
Net cash provided by financing activities	2,419	3,779	1,260
Effect of exchange rate changes on cash, cash equivalents and restricted cash	6	(1)	2
(Decrease) increase in cash, cash equivalents and restricted cash	(73)	(119)	(404)
Cash and cash equivalents, January 1	389	462	581
Cash, cash equivalents and restricted cash, January 1	462
Cash, cash equivalents and restricted cash, December 31	389	462
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Interest payments, net of amounts capitalized	1,172	1,014	1,163
Income tax payments (refunds), net	197	284	230
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Increase in Cameron LNG JV investment for guarantee	0	0	22
Repayment of advances from unconsolidated affiliate in lieu of distribution	36	32	45
Accrued capital expenditures	1,052	590	591
Increase in finance lease obligations for investment in PP&E	57	57	43
Derecognized PP&E for net investment in sales-type lease	0	0	44
Increase in ARO for investment in PP&E	33	91	153
Issuance of common stock in exchange for NCI and related AOCI	0	0	1,373
Conversion of mandatory convertible preferred stock	0	0	2,258
Contributions from NCI	200	0	0
Common Stock
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Dividends declared but not paid	376	360	349
Preferred stock
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Dividends declared but not paid	$ 11	$ 11	$ 11