CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - SDG&E - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net income	$ 1,463	$ 4,105	$ 2,362
Other comprehensive income (loss):
Total other comprehensive (loss) income	171	422	(140)
Pretax amount
Net income	1,417	5,368	2,585
Other comprehensive income (loss):
Financial instruments	191	(146)	(161)
Pension and other postretirement benefits	28	11	25
Total other comprehensive (loss) income	213	412	(179)
Total comprehensive income, after preferred dividends of subsidiaries	1,629	5,779	2,405
Income tax (expense) benefit
Net income	(99)	(1,435)	(387)
Other comprehensive income (loss):
Financial instruments	(47)	33	53
Pension and other postretirement benefits	(6)	1	(7)
Total other comprehensive (loss) income	(53)	34	46
Total comprehensive income, after preferred dividends of subsidiaries	(152)	(1,401)	(341)
Net-of-tax amount
Net income	1,318	3,933	2,198
Other comprehensive income (loss):
Financial instruments	144	(113)	(108)
Pension and other postretirement benefits	22	12	18
Total other comprehensive (loss) income	160	446	(133)
Total comprehensive income, after preferred dividends of subsidiaries	1,477	4,378	2,064
Noncontrolling interests (after tax)
Net income	145	172	164
Other comprehensive income (loss):
Financial instruments	14	(12)	(10)
Pension and other postretirement benefits	0	0	0
Total other comprehensive (loss) income	11	(24)	(7)
Total comprehensive income, after preferred dividends of subsidiaries	156	148	157
Total
Net income	1,463	4,105	2,362
Other comprehensive income (loss):
Financial instruments	158	(125)	(118)
Pension and other postretirement benefits	22	12	18
Total other comprehensive (loss) income	171	422	(140)
Total comprehensive income, after preferred dividends of subsidiaries	1,633	4,526	2,221
San Diego Gas and Electric Company [Member]
Net income	819	824	774
Other comprehensive income (loss):
Total other comprehensive (loss) income		6	(2)
San Diego Gas and Electric Company [Member] | Pretax amount
Net income	1,020	1,014	938
Other comprehensive income (loss):
Financial instruments			0
Pension and other postretirement benefits		8	(6)
Total other comprehensive (loss) income		8	(6)
Total comprehensive income, after preferred dividends of subsidiaries	1,020	1,022	932
San Diego Gas and Electric Company [Member] | Income tax (expense) benefit
Net income	(201)	(190)	(171)
Other comprehensive income (loss):
Financial instruments			0
Pension and other postretirement benefits		(2)	2
Total other comprehensive (loss) income		(2)	2
Total comprehensive income, after preferred dividends of subsidiaries	(201)	(192)	(169)
San Diego Gas and Electric Company [Member] | Net-of-tax amount
Net income	819	824	767
Other comprehensive income (loss):
Financial instruments			0
Pension and other postretirement benefits		6	(4)
Total other comprehensive (loss) income		6	(4)
Total comprehensive income, after preferred dividends of subsidiaries	819	830	763
San Diego Gas and Electric Company [Member] | Noncontrolling interests (after tax)
Net income	0	0	7
Other comprehensive income (loss):
Financial instruments			2
Pension and other postretirement benefits		0	0
Total other comprehensive (loss) income		0	2
Total comprehensive income, after preferred dividends of subsidiaries	0	0	9
San Diego Gas and Electric Company [Member] | Total
Net income	819	824	774
Other comprehensive income (loss):
Financial instruments			2
Pension and other postretirement benefits		6	(4)
Total other comprehensive (loss) income		6	(2)
Total comprehensive income, after preferred dividends of subsidiaries	$ 819	$ 830	$ 772