CONSOLIDATED STATEMENTS OF CASH FLOWS - SCG - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES
Net (loss) income	$ 1,463	$ 4,105	$ 2,362
Adjustments to reconcile net income to net cash provided by operating activities:
Deferred income taxes and investment tax credits	(78)	159	189
Impairment losses	3	1	43
Other	167	139	58
Net change in other working capital components:
Accounts receivable	(599)	(328)	(97)
Due to/from unconsolidated affiliates, net	(1)	12	1
Income taxes receivable/payable, net	(38)	(94)	(166)
Inventories	(87)	(35)	(22)
Other current assets	(220)	38	(88)
Accounts payable	263	74	17
Regulatory balancing accounts, net	249	(231)	13
Reserve for Aliso Canyon costs	1,532	141	(144)
Other current liabilities	(105)	(127)	(99)
Insurance receivable for Aliso Canyon costs	85	(106)	122
Reserve for Aliso Canyon costs, noncurrent	0	294	0
Changes in other noncurrent assets and liabilities, net	(496)	56	(399)
Net cash provided by operating activities	3,842	2,591	3,088
CASH FLOWS FROM INVESTING ACTIVITIES
Expenditures for property, plant and equipment	(5,015)	(4,676)	(3,708)
Other	11	15	21
Net cash used in investing activities	(5,508)	553	(4,593)
CASH FLOWS FROM FINANCING ACTIVITIES
Common dividends paid	(1,331)	(1,174)	(993)
Preferred dividends paid	(99)	(157)	(142)
Issuances of debt (maturities greater than 90 days)	3,773	6,051	4,296
Payments on debt (maturities greater than 90 days) and finance leases	(5,489)	(5,864)	(3,667)
Increase (decrease) in short-term debt, net	1,913	(1,759)	656
Net cash provided by financing activities	1,260	(2,373)	1,475
Increase (decrease) in cash and cash equivalents	(404)	768	(29)
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Interest payments, net of amounts capitalized	1,163	1,046	1,051
Income tax payments (refunds), net	230	1,385	360
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued capital expenditures	591	535	515
Increase in finance lease obligations for investment in PP&E	43	77	38
Increase in ARO for investment in PP&E	153	142	36
SoCalGas
CASH FLOWS FROM OPERATING ACTIVITIES
Net (loss) income	(426)	505	642
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	716	654	602
Deferred income taxes and investment tax credits	(494)	(112)	88
Impairment losses	0	0	37
Other	19	59	(5)
Net change in other working capital components:
Accounts receivable	(383)	(101)	(73)
Due to/from unconsolidated affiliates, net	(25)	(27)	(1)
Income taxes receivable/payable, net	(43)	189	(156)
Inventories	(18)	(19)	1
Other current assets	(21)	(12)	(9)
Accounts payable	181	64	(7)
Regulatory balancing accounts, net	306	(160)	114
Reserve for Aliso Canyon costs	1,532	141	(144)
Other current liabilities	(92)	(21)	(21)
Insurance receivable for Aliso Canyon costs	85	(106)	122
Reserve for Aliso Canyon costs, noncurrent	0	294	0
Changes in other noncurrent assets and liabilities, net	(304)	178	(322)
Net cash provided by operating activities	1,033	1,526	868
CASH FLOWS FROM INVESTING ACTIVITIES
Expenditures for property, plant and equipment	(1,984)	(1,843)	(1,439)
Other	0	0	1
Net cash used in investing activities	(1,984)	(1,843)	(1,438)
CASH FLOWS FROM FINANCING ACTIVITIES
Common dividends paid	(75)	(100)	(150)
Preferred dividends paid	(1)	(1)	(1)
Equity contribution from Sempra Energy	800	0	0
Issuances of debt (maturities greater than 90 days)	0	949	349
Payments on debt (maturities greater than 90 days) and finance leases	(12)	(12)	(6)
Increase (decrease) in short-term debt, net	272	(517)	374
Debt issuance costs	0	(8)	(4)
Net cash provided by financing activities	984	311	562
Increase (decrease) in cash and cash equivalents	33	(6)	(8)
Cash and cash equivalents, January 1	4	10	18
Cash and cash equivalents, December 31	37	4	10
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Interest payments, net of amounts capitalized	151	146	126
Income tax payments (refunds), net	227	19	188
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued capital expenditures	222	208	205
Increase in finance lease obligations for investment in PP&E	19	47	22
Increase in ARO for investment in PP&E	$ 125	$ 107	$ 35