CONSOLIDATED STATEMENTS OF CASH FLOWS - SCG - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
CASH FLOWS FROM OPERATING ACTIVITIES
Net (loss) income	$ 2,285	$ 1,463	$ 4,105
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes and investment tax credits	392	(78)	159
Other	154	170	140
Net change in other working capital components:
Accounts receivable	(976)	(599)	(328)
Due to/from unconsolidated affiliates, net	(31)	(1)	12
Income taxes receivable/payable, net	(29)	(38)	(94)
Inventories	(17)	(87)	(35)
Other current assets	(1,608)	(220)	38
Accounts payable	430	263	74
Regulatory balancing accounts, net	36	249	(231)
Reserve for Aliso Canyon costs	(1,851)	1,532	141
Other current liabilities	228	(105)	(127)
Insurance receivable for Aliso Canyon costs	360	85	(106)
Reserve for Aliso Canyon costs, noncurrent	1	0	294
Changes in other noncurrent assets and liabilities, net	(565)	(496)	56
Net cash provided by operating activities	1,142	3,842	2,591
CASH FLOWS FROM INVESTING ACTIVITIES
Expenditures for property, plant and equipment	(5,357)	(5,015)	(4,676)
Net cash used in investing activities	(5,039)	(5,508)	553
CASH FLOWS FROM FINANCING ACTIVITIES
Common dividends paid	(1,430)	(1,331)	(1,174)
Preferred dividends paid	(44)	(99)	(157)
Issuances of debt (maturities greater than 90 days)	9,984	3,773	6,051
Payments on debt (maturities greater than 90 days) and finance leases	(4,510)	(5,489)	(5,864)
(Decrease) increase in short-term debt, net	(1,266)	1,913	(1,759)
Net cash provided by (used in) financing activities	3,779	1,260	(2,373)
(Decrease) increase in cash and cash equivalents	(119)	(404)	768
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Interest payments, net of amounts capitalized	1,014	1,163	1,046
Income tax payments, including discontinued operations, net of refunds	284	230	1,385
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued capital expenditures	590	591	535
Increase in finance lease obligations for investment in PP&E	57	43	77
Increase in ARO for investment in PP&E	91	153	142
SoCalGas
CASH FLOWS FROM OPERATING ACTIVITIES
Net (loss) income	600	(426)	505
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	761	716	654
Deferred income taxes and investment tax credits	146	(494)	(112)
Other	58	19	59
Net change in other working capital components:
Accounts receivable	(512)	(383)	(101)
Due to/from unconsolidated affiliates, net	(28)	(25)	(27)
Income taxes receivable/payable, net	23	(43)	189
Inventories	13	(18)	(19)
Other current assets	(139)	(21)	(12)
Accounts payable	191	181	64
Regulatory balancing accounts, net	46	306	(160)
Reserve for Aliso Canyon costs	(1,851)	1,532	141
Other current liabilities	185	(92)	(21)
Insurance receivable for Aliso Canyon costs	360	85	(106)
Reserve for Aliso Canyon costs, noncurrent	1	0	294
Changes in other noncurrent assets and liabilities, net	(308)	(304)	178
Net cash provided by operating activities	(454)	1,033	1,526
CASH FLOWS FROM INVESTING ACTIVITIES
Expenditures for property, plant and equipment	(1,993)	(1,984)	(1,843)
Net cash used in investing activities	(1,993)	(1,984)	(1,843)
CASH FLOWS FROM FINANCING ACTIVITIES
Common dividends paid	0	(75)	(100)
Preferred dividends paid	(1)	(1)	(1)
Equity contributions from Sempra Energy	650	800	0
Issuances of debt (maturities greater than 90 days)	2,094	0	949
Payments on debt (maturities greater than 90 days) and finance leases	(15)	(12)	(12)
(Decrease) increase in short-term debt, net	(285)	272	(517)
Debt issuance costs	(12)	0	(8)
Net cash provided by (used in) financing activities	2,431	984	311
(Decrease) increase in cash and cash equivalents	(16)	33	(6)
Cash and cash equivalents, January 1	37	4	10
Cash and cash equivalents, December 31	21	37	4
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Interest payments, net of amounts capitalized	173	151	146
Income tax payments, including discontinued operations, net of refunds	(31)	227	19
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued capital expenditures	245	222	208
Increase in finance lease obligations for investment in PP&E	41	19	47
Increase in ARO for investment in PP&E	$ 63	$ 125	$ 107