CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 3,252	$ 953
Less: Income from discontinued operations, net of income tax	(1,857)	(36)
Income from continuing operations, net of income tax	1,395	917
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	824	772
Deferred income taxes and investment tax credits	(94)	(12)
Gain on sale of assets	0	(66)
Equity earnings	(496)	(219)
Foreign currency transaction losses (gains), net	110	(11)
Share-based compensation expense	36	39
Other	49	(21)
Intercompany activities with discontinued operations, net	0	64
Net change in other working capital components	375	84
Insurance receivable for Aliso Canyon costs	(166)	80
Changes in other noncurrent assets and liabilities, net	35	(104)
Net cash provided by continuing operations	2,068	1,523
Net cash (used in) provided by discontinued operations	(1,041)	181
Net cash provided by operating activities	1,027	1,704
CASH FLOWS FROM INVESTING ACTIVITIES
Expenditures for property, plant and equipment	(2,198)	(1,651)
Expenditures for investments and acquisitions	(140)	(1,391)
Proceeds from sale of assets	5	902
Purchases of nuclear decommissioning trust assets	(797)	(497)
Proceeds from sales of nuclear decommissioning trust assets	797	497
Advances to unconsolidated affiliates	(25)	(16)
Repayments of advances to unconsolidated affiliates	0	9
Intercompany activities with discontinued operations, net	0	(2)
Other	17	13
Net cash used in continuing operations	(2,341)	(2,136)
Net cash provided by (used in) discontinued operations	5,195	(131)
Net cash provided by (used in) investing activities	2,854	(2,267)
CASH FLOWS FROM FINANCING ACTIVITIES
Common dividends paid	(567)	(483)
Preferred dividends paid	(71)	(71)
Issuances of preferred stock	891	0
Issuances of common stock	13	20
Repurchases of common stock	(64)	(18)
Issuances of debt (maturities greater than 90 days)	4,059	2,630
Payments on debt (maturities greater than 90 days) and finance leases	(1,970)	(871)
Decrease in short-term debt, net	(1,871)	(444)
Advances from unconsolidated affiliates	64	0
Purchases of noncontrolling interests	(27)	(28)
Other	(16)	(41)
Net cash provided by continuing operations	441	694
Net cash provided by (used in) discontinued operations	401	(83)
Net cash provided by financing activities	842	611
Effect of exchange rate changes in continuing operations	(7)	0
Effect of exchange rate changes in discontinued operations	(3)	0
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(10)	0
Increase in cash, cash equivalents and restricted cash, including discontinued operations	4,713	48
Cash, cash equivalents and restricted cash, including discontinued operations, January 1	217	246
Cash, cash equivalents and restricted cash, including discontinued operations, June 30	4,930	294
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Interest payments, net of amounts capitalized	540	514
Income tax payments, net of refunds	1,303	64
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued capital expenditures	434	417
Increase in finance lease obligations for investment in property, plant and equipment	56	16
Equitization of long-term debt for deficit held by NCI	22	0
Common dividends issued in stock	22	27
Preferred stock [Member]
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Dividends declared but not paid	37	36
Common Stock [Member]
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Dividends declared but not paid	305	266
San Diego Gas and Electric Company [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	455	323
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	398	375
Deferred income taxes and investment tax credits	29	(27)
Other	(13)	(2)
Net change in other working capital components	(36)	(68)
Changes in other noncurrent assets and liabilities, net	(95)	19
Net cash provided by operating activities	738	620
CASH FLOWS FROM INVESTING ACTIVITIES
Expenditures for property, plant and equipment	(850)	(708)
Purchases of nuclear decommissioning trust assets	(797)	(497)
Proceeds from sales of nuclear decommissioning trust assets	797	497
Other	8	0
Net cash provided by (used in) investing activities	(842)	(708)
CASH FLOWS FROM FINANCING ACTIVITIES
Common dividends paid	(200)	0
Issuances of debt (maturities greater than 90 days)	799	400
Payments on debt (maturities greater than 90 days) and finance leases	(229)	(36)
Decrease in short-term debt, net	(80)	(273)
Distributions to noncontrolling interest	0	(2)
Debt issuance costs	(4)	(4)
Net cash provided by financing activities	286	85
Increase in cash, cash equivalents and restricted cash, including discontinued operations	182	(3)
Cash, cash equivalents and restricted cash, including discontinued operations, January 1	10	37
Cash, cash equivalents and restricted cash, including discontinued operations, June 30	192	34
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Interest payments, net of amounts capitalized	198	201
Income tax payments, net of refunds	0	106
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued capital expenditures	136	110
Increase in finance lease obligations for investment in property, plant and equipment	20	7
Southern California Gas Company [Member]
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	450	295
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	321	295
Deferred income taxes and investment tax credits	(17)	(75)
Other	14	13
Net change in other working capital components	713	217
Insurance receivable for Aliso Canyon costs	(166)	80
Changes in other noncurrent assets and liabilities, net	(117)	(151)
Net cash provided by operating activities	1,198	674
CASH FLOWS FROM INVESTING ACTIVITIES
Expenditures for property, plant and equipment	(885)	(659)
Increase in loans to affiliate, net	0	(94)
Other	0	2
Net cash provided by (used in) investing activities	(885)	(751)
CASH FLOWS FROM FINANCING ACTIVITIES
Preferred dividends paid	(1)	(1)
Issuances of debt (maturities greater than 90 days)	649	349
Decrease in short-term debt, net	(630)	(256)
Payments on finance leases	(5)	(2)
Debt issuance costs	(6)	(3)
Net cash provided by financing activities	7	87
Increase in cash, cash equivalents and restricted cash, including discontinued operations	320	10
Cash, cash equivalents and restricted cash, including discontinued operations, January 1	10	18
Cash, cash equivalents and restricted cash, including discontinued operations, June 30	330	28
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Interest payments, net of amounts capitalized	70	60
Income tax payments, net of refunds	0	87
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued capital expenditures	158	178
Increase in finance lease obligations for investment in property, plant and equipment	36	9
Dividends declared but not paid	$ 50	$ 0