CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - SDG&E - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	$ 657	$ 928
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	493	442
Deferred income taxes and investment tax credits	347	97
Other	50	59
Net change in working capital components	326	84
Changes in other noncurrent assets and liabilities, net	(285)	(195)
Net cash provided by operating activities	1,607	1,502
CASH FLOWS FROM INVESTING ACTIVITIES
Expenditures for property, plant and equipment	(1,204)	(1,181)
Purchases of nuclear decommissioning trust assets	(242)	(288)
Proceeds from sales of nuclear decommissioning trust assets	242	288
Net cash used in investing activities	(1,290)	(1,301)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuances of debt (maturities greater than 90 days)	4,023	102
Payments on debt (maturities greater than 90 days) and finance leases	(1,048)	(1,093)
(Decrease) increase in short-term debt, net	(720)	932
Net cash provided by (used in) financing activities	1,638	(407)
Increase (decrease) in cash, cash equivalents and restricted cash	1,955	(207)
Total cash, cash equivalents and restricted cash on the Condensed Consolidated Statements of Cash Flows	2,536	778
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Interest payments, net of amounts capitalized	233	225
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued capital expenditures	468	499
Increase in finance lease obligations for investment in PP&E	13	15
San Diego Gas and Electric Company
CASH FLOWS FROM OPERATING ACTIVITIES
Net income	234	212
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	239	213
Deferred income taxes and investment tax credits	4	27
Other	11	1
Net change in working capital components	272	16
Changes in other noncurrent assets and liabilities, net	(90)	(73)
Net cash provided by operating activities	670	396
CASH FLOWS FROM INVESTING ACTIVITIES
Expenditures for property, plant and equipment	(552)	(555)
Purchases of nuclear decommissioning trust assets	(242)	(288)
Proceeds from sales of nuclear decommissioning trust assets	242	288
Net cash used in investing activities	(552)	(555)
CASH FLOWS FROM FINANCING ACTIVITIES
Issuances of debt (maturities greater than 90 days)	1,195	0
Payments on debt (maturities greater than 90 days) and finance leases	(400)	(224)
(Decrease) increase in short-term debt, net	(401)	130
Debt issuance costs	(9)	0
Net cash provided by (used in) financing activities	385	(94)
Increase (decrease) in cash, cash equivalents and restricted cash	503	(253)
Total cash, cash equivalents and restricted cash on the Condensed Consolidated Statements of Cash Flows	528	9
SUPPLEMENTAL DISCLOSURE OF CASH FLOW INFORMATION
Interest payments, net of amounts capitalized	81	75
SUPPLEMENTAL DISCLOSURE OF NONCASH INVESTING AND FINANCING ACTIVITIES
Accrued capital expenditures	164	146
Increase in finance lease obligations for investment in PP&E	$ 5	$ 6