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	$ 1,407	$ 824	$ 925
Adjustments to reconcile to net cash provided by operating activities:
Depreciation and amortization	2,721	2,633	2,288
Allowance for equity during construction	(157)	(137)	(118)
Impairment and other expense	1	54	71
Deferred income taxes	108	(177)	43
Wildfire Insurance Fund amortization expense	213	214	215
Other	57	75	38
Nuclear decommissioning trusts	(180)	(123)	(256)
Proceeds from Morongo Transmission LLC			400
Contributions to Wildfire Insurance Fund	(95)	(95)	(95)
Changes in operating assets and liabilities:
Receivables	(349)	(252)	(514)
Inventory	(63)	(58)	(21)
Accounts payable	(408)	367	138
Tax receivables and payables	9	18	13
Other current assets and liabilities	185	207	(321)
Derivative assets and liabilities, net	(174)	115	(12)
Regulatory assets and liabilities, net	576	(51)	(720)
Wildfire-related insurance receivable	(36)	(390)	708
Wildfire-related claims	(410)	(56)	(2,648)
Other noncurrent assets and liabilities	(4)	48	(123)
Net cash provided by operating activities	3,401	3,216	11
Cash flows from financing activities:
Long-term debt issued, net of discount and issuance costs	5,121	5,971	5,412
Long-term debt repaid	(2,498)	(1,085)	(1,037)
Short-term debt issued	1,076	1,000	2,654
Short-term debt repaid	(2,407)	(1,543)	(2,255)
Common stock issued	20	13	32
Preferred and preference stock issued, net of issuance cost	542		1,977
Preferred stock repurchased	(289)
Commercial paper borrowing (repayments), net	1,102	(317)	(254)
Dividends and distribution to noncontrolling interests	(117)	(110)	(106)
Common stock dividends paid	(1,112)	(1,050)	(988)
Preferred stock dividends paid	(108)	(99)	(35)
Other	117	101	45
Net cash provided by financing activities	1,447	2,881	5,445
Cash flows from investing activities:
Capital expenditures	(5,448)	(5,778)	(5,505)
Proceeds from sale of nuclear decommissioning trust investments	4,597	4,177	3,961
Purchases of nuclear decommissioning trust investments	(4,417)	(4,054)	(3,705)
Other	35	81	98
Net cash used in investing activities	(5,233)	(5,574)	(5,151)
Net (decrease) increase in cash, cash equivalents and restricted cash	(385)	523	305
Cash, cash equivalents and restricted cash at beginning of year	917	394	89
Cash, cash equivalents and restricted cash at end of year	532	917	394
SCE
Cash flows from operating activities:
Net income	1,597	954	935
Adjustments to reconcile to net cash provided by operating activities:
Depreciation and amortization	2,710	2,626	2,280
Allowance for equity during construction	(157)	(137)	(118)
Impairment and other expense	1	50	67
Deferred income taxes	179	(111)	62
Wildfire Insurance Fund amortization expense	213	214	215
Other	33	59	28
Nuclear decommissioning trusts	(180)	(123)	(256)
Proceeds from Morongo Transmission LLC			400
Contributions to Wildfire Insurance Fund	(95)	(95)	(95)
Changes in operating assets and liabilities:
Receivables	(336)	(245)	(513)
Inventory	(63)	(58)	(21)
Accounts payable	(413)	366	131
Tax receivables and payables	4	(1)	31
Other current assets and liabilities	220	150	(321)
Derivative assets and liabilities, net	(174)	115	(12)
Regulatory assets and liabilities, net	576	(51)	(720)
Wildfire-related insurance receivable	(39)	(398)	708
Wildfire-related claims	(410)	(56)	(2,648)
Other noncurrent assets and liabilities	15	60	5
Net cash provided by operating activities	3,681	3,319	158
Cash flows from financing activities:
Long-term debt issued, net of discount and issuance costs	3,588	5,032	5,411
Long-term debt repaid	(2,098)	(385)	(1,037)
Short-term debt issued	706		2,654
Short-term debt repaid	(1,051)	(1,543)	(2,255)
Capital contributions from Edison International Parent		1,400	1,633
Preferred and preference stock issued, net of issuance cost	542
Commercial paper borrowing (repayments), net	963	(406)	(124)
Common stock dividends paid	(1,400)	(1,300)	(975)
Preferred stock dividends paid	(117)	(110)	(106)
Other	49	36	17
Net cash provided by financing activities	1,182	2,724	5,218
Cash flows from investing activities:
Capital expenditures	(5,446)	(5,776)	(5,503)
Proceeds from sale of nuclear decommissioning trust investments	4,597	4,177	3,961
Purchases of nuclear decommissioning trust investments	(4,417)	(4,054)	(3,705)
Other	35	96	95
Net cash used in investing activities	(5,231)	(5,557)	(5,152)
Net (decrease) increase in cash, cash equivalents and restricted cash	(368)	486	224
Cash, cash equivalents and restricted cash at beginning of year	766	280	56
Cash, cash equivalents and restricted cash at end of year	$ 398	$ 766	$ 280