EMPLOYEE BENEFIT PLANS - EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Liability, Defined Benefit Plan [Abstract]
Noncurrent liabilities	$ (687)	$ (1,059)	$ (1,067)
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Expected return on plan assets	6.75%
Pension Plan
CHANGE IN PROJECTED BENEFIT OBLIGATION
Net obligation at January 1	$ 4,077	3,768	3,339
Service cost	145	129	110
Interest cost	112	129	139
Contributions from plan participants	0	0	0
Actuarial (gain) loss	(76)	351	445
Plan amendments	0	0	5
Benefit payments	(98)	(93)	(93)
Settlements	(303)	(207)	(177)
Net obligation at December 31	3,857	4,077	3,768
CHANGE IN PLAN ASSETS
Fair value of plan assets at January 1	3,002	2,662	2,160
Actual return on plan assets	340	350	496
Employer contributions	241	290	276
Contributions from plan participants	0	0	0
Benefit payments	(98)	(93)	(93)
Settlements	(303)	(207)	(177)
Fair value of plan assets at December 31	3,182	3,002	2,662
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract]
Funded status at December 31	(675)	(1,075)	(1,106)
Net recorded (liability) asset at December 31	(675)	(1,075)	(1,106)
Liability, Defined Benefit Plan [Abstract]
Noncurrent assets	19	0	0
Current liabilities	(19)	(35)	(59)
Noncurrent liabilities	(675)	(1,040)	(1,047)
Net recorded (liability) asset	(675)	(1,075)	(1,106)
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax [Abstract]
Net actuarial (loss) gain	(86)	(102)	(113)
Prior service cost	(8)	(11)	(14)
Total	(94)	(113)	(127)
NET PERIODIC BENEFIT COST AND AMOUNTS RECOGNIZED IN OCI
Service cost	145	129	110
Interest cost	112	129	139
Expected return on assets	(173)	(169)	(144)
Amortization of prior service cost (credit)	11	12	12
Amortization of actuarial loss (gain)	45	35	36
Settlement charges	38	22	28
Net periodic benefit cost	178	158	181
Regulatory adjustment	57	91	77
Total expense recognized	235	249	258
CHANGES IN PLAN ASSETS AND BENEFIT OBLIGATIONS RECOGNIZED IN OCI (1)
Net loss (gain)	(5)	28	17
Prior service cost	0	0	5
Amortization of actuarial loss	(8)	(14)	(13)
Amortization of prior service cost	(4)	(4)	(3)
Settlements	(7)	(22)	(28)
Total recognized in OCI	(24)	(12)	(22)
Total recognized in net periodic benefit cost and OCI	$ 211	$ 237	$ 236
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
Discount rate	3.04%	2.78%	3.49%
Interest crediting rate	1.94%	1.62%	2.28%
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Discount rate	2.78%	3.49%	4.29%
Expected return on plan assets	6.47%	7.00%	7.00%
Interest crediting rate	1.62%	2.28%	3.36%
EXPECTED CONTRIBUTIONS
Expected employer contributions	$ 231
EXPECTED BENEFIT PAYMENTS
2022	276
2023	261
2024	253
2025	244
2026	240
2027-2031	$ 1,122
Pension Plan | Minimum
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
Rate of compensation increase	2.70%	2.70%	2.70%
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Rate of compensation increase	2.70%	2.70%	2.00%
Pension Plan | Maximum
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
Rate of compensation increase	10.00%	10.00%	10.00%
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Rate of compensation increase	10.00%	10.00%	10.00%
Other Postretirement Benefits Plan
CHANGE IN PROJECTED BENEFIT OBLIGATION
Net obligation at January 1	$ 989	$ 913	$ 868
Service cost	23	18	17
Interest cost	28	33	36
Contributions from plan participants	21	22	21
Actuarial (gain) loss	(53)	79	45
Plan amendments	0	0	0
Benefit payments	(68)	(74)	(72)
Settlements	0	(2)	(2)
Net obligation at December 31	940	989	913
CHANGE IN PLAN ASSETS
Fair value of plan assets at January 1	1,399	1,281	1,108
Actual return on plan assets	51	164	218
Employer contributions	5	8	8
Contributions from plan participants	21	22	21
Benefit payments	(68)	(74)	(72)
Settlements	0	(2)	(2)
Fair value of plan assets at December 31	1,408	1,399	1,281
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract]
Funded status at December 31	468	410	368
Net recorded (liability) asset at December 31	468	410	368
Liability, Defined Benefit Plan [Abstract]
Noncurrent assets	481	430	391
Current liabilities	(1)	(1)	(3)
Noncurrent liabilities	(12)	(19)	(20)
Net recorded (liability) asset	468	410	368
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax [Abstract]
Net actuarial (loss) gain	11	8	10
Prior service cost	0	0	0
Total	11	8	10
NET PERIODIC BENEFIT COST AND AMOUNTS RECOGNIZED IN OCI
Service cost	23	18	17
Interest cost	28	33	36
Expected return on assets	(61)	(55)	(71)
Amortization of prior service cost (credit)	(2)	(2)	0
Amortization of actuarial loss (gain)	(9)	(10)	(10)
Settlement charges	0	0	0
Net periodic benefit cost	(21)	(16)	(28)
Regulatory adjustment	21	16	29
Total expense recognized	0	0	1
CHANGES IN PLAN ASSETS AND BENEFIT OBLIGATIONS RECOGNIZED IN OCI (1)
Net loss (gain)	(4)	1	(3)
Prior service cost	0	0	0
Amortization of actuarial loss	0	0	0
Amortization of prior service cost	0	0	0
Settlements	0	0	0
Total recognized in OCI	(4)	1	(3)
Total recognized in net periodic benefit cost and OCI	$ (4)	$ 1	$ (2)
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
Discount rate	3.04%	2.88%	3.54%
Interest crediting rate	1.94%	1.62%	2.28%
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Discount rate	2.88%	3.54%	4.29%
Expected return on plan assets	4.76%	4.64%	6.48%
Interest crediting rate	1.62%	2.28%	3.36%
EXPECTED CONTRIBUTIONS
Expected employer contributions	$ 5
EXPECTED BENEFIT PAYMENTS
2022	46
2023	46
2024	46
2025	46
2026	48
2027-2031	$ 226
Other Postretirement Benefits Plan | Pre-65Retiree
ASSUMED HEALTH CARE COST TREND RATES
Health care cost trend rate assumed for next year	6.00%	6.00%	6.25%
Rate to which the cost trend rate is assumed to decline (the ultimate trend)	4.75%	4.75%	4.75%
Other Postretirement Benefits Plan | Retiree Aged 65 or Older
ASSUMED HEALTH CARE COST TREND RATES
Health care cost trend rate assumed for next year	4.75%	4.75%	4.75%
Rate to which the cost trend rate is assumed to decline (the ultimate trend)	4.50%	4.50%	4.50%
Other Postretirement Benefits Plan | Minimum
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
Rate of compensation increase	2.70%	2.70%	2.70%
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Rate of compensation increase	2.70%	2.70%	2.00%
Other Postretirement Benefits Plan | Maximum
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
Rate of compensation increase	10.00%	10.00%	10.00%
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Rate of compensation increase	10.00%	10.00%	10.00%
San Diego Gas and Electric Company [Member]
Liability, Defined Benefit Plan [Abstract]
Noncurrent liabilities	$ (25)	$ (92)	$ (153)
San Diego Gas and Electric Company [Member] | Pension Plan
CHANGE IN PROJECTED BENEFIT OBLIGATION
Net obligation at January 1	913	895	814
Service cost	35	31	30
Interest cost	25	30	34
Contributions from plan participants	0	0	0
Actuarial (gain) loss	(2)	37	61
Plan amendments	0	0	3
Benefit payments	(17)	(18)	(18)
Settlements	(69)	(52)	(39)
Transfer of liability from other plans	0	(10)	10
Net obligation at December 31	885	913	895
CHANGE IN PLAN ASSETS
Fair value of plan assets at January 1	819	739	600
Actual return on plan assets	73	94	135
Employer contributions	53	52	52
Contributions from plan participants	0	0	0
Benefit payments	(17)	(18)	(18)
Settlements	(69)	(52)	(39)
Transfer of assets from other plans	0	4	9
Fair value of plan assets at December 31	859	819	739
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract]
Funded status at December 31	(26)	(94)	(156)
Net recorded (liability) asset at December 31	(26)	(94)	(156)
Liability, Defined Benefit Plan [Abstract]
Noncurrent assets	0	0	0
Current liabilities	(1)	(2)	(3)
Noncurrent liabilities	(25)	(92)	(153)
Net recorded (liability) asset	(26)	(94)	(156)
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax [Abstract]
Net actuarial (loss) gain	(9)	(8)	(9)
Prior service cost	(1)	(2)	(7)
Total	(10)	(10)	(16)
NET PERIODIC BENEFIT COST AND AMOUNTS RECOGNIZED IN OCI
Service cost	35	31	30
Interest cost	25	30	34
Expected return on assets	(50)	(49)	(38)
Amortization of prior service cost (credit)	1	2	3
Amortization of actuarial loss (gain)	2	3	11
Settlement charges	6	0	0
Net periodic benefit cost	19	17	40
Regulatory adjustment	34	38	14
Total expense recognized	53	55	54
CHANGES IN PLAN ASSETS AND BENEFIT OBLIGATIONS RECOGNIZED IN OCI (1)
Net loss (gain)	1	6	5
Prior service cost	0	0	2
Transfer of actuarial loss (gain)	0	(7)	0
Transfer of prior service cost (credit)	0	(5)	0
Amortization of actuarial loss	0	(1)	0
Amortization of prior service cost	(1)	(1)	(1)
Total recognized in OCI	0	(8)	6
Total recognized in net periodic benefit cost and OCI	$ 53	$ 47	$ 60
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
Discount rate	2.99%	2.73%	3.44%
Interest crediting rate	1.94%	1.62%	2.28%
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Discount rate	2.73%	3.44%	4.29%
Expected return on plan assets	6.25%	7.00%	7.00%
Interest crediting rate	1.62%	2.28%	3.36%
EXPECTED CONTRIBUTIONS
Expected employer contributions	$ 52
EXPECTED BENEFIT PAYMENTS
2022	71
2023	69
2024	66
2025	65
2026	59
2027-2031	$ 275
San Diego Gas and Electric Company [Member] | Pension Plan | Minimum
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
Rate of compensation increase	3.50%	2.70%	2.70%
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Rate of compensation increase	2.70%	2.70%	2.00%
San Diego Gas and Electric Company [Member] | Pension Plan | Maximum
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
Rate of compensation increase	10.00%	10.00%	10.00%
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Rate of compensation increase	10.00%	10.00%	10.00%
San Diego Gas and Electric Company [Member] | Other Postretirement Benefits Plan
CHANGE IN PROJECTED BENEFIT OBLIGATION
Net obligation at January 1	$ 193	$ 177	$ 170
Service cost	5	4	4
Interest cost	5	6	7
Contributions from plan participants	7	8	7
Actuarial (gain) loss	(3)	17	7
Plan amendments	0	0	0
Benefit payments	(19)	(20)	(18)
Settlements	0	0	0
Transfer of liability from other plans	0	1	0
Net obligation at December 31	188	193	177
CHANGE IN PLAN ASSETS
Fair value of plan assets at January 1	213	197	172
Actual return on plan assets	(5)	26	36
Employer contributions	1	1	0
Contributions from plan participants	7	8	7
Benefit payments	(19)	(20)	(18)
Settlements	0	0	0
Transfer of assets from other plans	0	1	0
Fair value of plan assets at December 31	197	213	197
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract]
Funded status at December 31	9	20	20
Net recorded (liability) asset at December 31	9	20	20
Liability, Defined Benefit Plan [Abstract]
Noncurrent assets	9	20	20
Current liabilities	0	0	0
Noncurrent liabilities	0	0	0
Net recorded (liability) asset	9	20	20
NET PERIODIC BENEFIT COST AND AMOUNTS RECOGNIZED IN OCI
Service cost	5	4	4
Interest cost	5	6	7
Expected return on assets	(10)	(10)	(11)
Amortization of prior service cost (credit)	0	0	2
Amortization of actuarial loss (gain)	(2)	(3)	(2)
Settlement charges	0	0	0
Net periodic benefit cost	(2)	(3)	0
Regulatory adjustment	2	3	0
Total expense recognized	0	0	0
CHANGES IN PLAN ASSETS AND BENEFIT OBLIGATIONS RECOGNIZED IN OCI (1)
Net loss (gain)	0	0	0
Prior service cost	0	0	0
Transfer of actuarial loss (gain)	0	0	0
Transfer of prior service cost (credit)	0	0	0
Amortization of actuarial loss	0	0	0
Amortization of prior service cost	0	0	0
Total recognized in OCI	0	0	0
Total recognized in net periodic benefit cost and OCI	$ 0	$ 0	$ 0
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
Discount rate	3.05%	2.85%	3.55%
Interest crediting rate	1.94%	1.62%	2.28%
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Discount rate	2.85%	3.55%	4.30%
Expected return on plan assets	4.81%	5.51%	6.92%
Interest crediting rate	1.62%	2.28%	3.36%
EXPECTED CONTRIBUTIONS
Expected employer contributions	$ 1
EXPECTED BENEFIT PAYMENTS
2022	9
2023	10
2024	10
2025	10
2026	10
2027-2031	$ 48
San Diego Gas and Electric Company [Member] | Other Postretirement Benefits Plan | Pre-65Retiree
ASSUMED HEALTH CARE COST TREND RATES
Health care cost trend rate assumed for next year	6.00%	6.00%	6.25%
Rate to which the cost trend rate is assumed to decline (the ultimate trend)	4.75%	4.75%	4.75%
San Diego Gas and Electric Company [Member] | Other Postretirement Benefits Plan | Retiree Aged 65 or Older
ASSUMED HEALTH CARE COST TREND RATES
Health care cost trend rate assumed for next year	4.75%	4.75%	4.75%
Rate to which the cost trend rate is assumed to decline (the ultimate trend)	4.50%	4.50%	4.50%
San Diego Gas and Electric Company [Member] | Other Postretirement Benefits Plan | Minimum
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
Rate of compensation increase	3.50%	2.70%	2.70%
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Rate of compensation increase	2.70%	2.70%	2.00%
San Diego Gas and Electric Company [Member] | Other Postretirement Benefits Plan | Maximum
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
Rate of compensation increase	10.00%	10.00%	10.00%
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Rate of compensation increase	10.00%	10.00%	10.00%
SoCalGas | Pension Plan
CHANGE IN PROJECTED BENEFIT OBLIGATION
Net obligation at January 1	$ 2,829	$ 2,526	$ 2,148
Service cost	97	86	68
Interest cost	78	88	91
Contributions from plan participants	0	0	0
Actuarial (gain) loss	(83)	282	345
Plan amendments	0	0	2
Benefit payments	(63)	(60)	(59)
Settlements	(211)	(105)	(65)
Transfer of liability from other plans	0	12	(4)
Net obligation at December 31	2,647	2,829	2,526
CHANGE IN PLAN ASSETS
Fair value of plan assets at January 1	1,969	1,737	1,385
Actual return on plan assets	243	243	320
Employer contributions	157	152	152
Contributions from plan participants	0	0	0
Benefit payments	(63)	(60)	(59)
Settlements	(211)	(105)	(65)
Transfer of assets from other plans	0	2	4
Fair value of plan assets at December 31	2,095	1,969	1,737
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract]
Funded status at December 31	(552)	(860)	(789)
Net recorded (liability) asset at December 31	(552)	(860)	(789)
Liability, Defined Benefit Plan [Abstract]
Noncurrent assets	0	0	0
Current liabilities	(1)	(7)	(4)
Noncurrent liabilities	(551)	(853)	(785)
Net recorded (liability) asset	(552)	(860)	(789)
Accumulated Other Comprehensive (Income) Loss, Defined Benefit Plan, after Tax [Abstract]
Net actuarial (loss) gain	(15)	(14)	(7)
Prior service cost	(3)	(4)	(3)
Total	(18)	(18)	(10)
NET PERIODIC BENEFIT COST AND AMOUNTS RECOGNIZED IN OCI
Service cost	97	86	68
Interest cost	78	88	91
Expected return on assets	(113)	(107)	(94)
Amortization of prior service cost (credit)	8	8	8
Amortization of actuarial loss (gain)	36	26	16
Settlement charges	25	0	0
Net periodic benefit cost	131	101	89
Regulatory adjustment	23	53	63
Total expense recognized	154	154	152
CHANGES IN PLAN ASSETS AND BENEFIT OBLIGATIONS RECOGNIZED IN OCI (1)
Net loss (gain)	2	6	2
Prior service cost	0	0	3
Transfer of actuarial loss (gain)	0	5	(4)
Transfer of prior service cost (credit)	0	3	(1)
Amortization of actuarial loss	(1)	(1)	(1)
Amortization of prior service cost	(1)	(1)	0
Total recognized in OCI	0	12	(1)
Total recognized in net periodic benefit cost and OCI	$ 154	$ 166	$ 151
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
Discount rate	3.04%	2.79%	3.50%
Interest crediting rate	1.94%	1.62%	2.28%
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Discount rate	2.79%	3.50%	4.30%
Expected return on plan assets	6.75%	7.00%	7.00%
Interest crediting rate	1.62%	2.28%	3.36%
EXPECTED CONTRIBUTIONS
Expected employer contributions	$ 152
EXPECTED BENEFIT PAYMENTS
2022	171
2023	163
2024	158
2025	156
2026	153
2027-2031	$ 725
SoCalGas | Pension Plan | Minimum
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
Rate of compensation increase	2.70%	2.70%	2.70%
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Rate of compensation increase	2.70%	2.70%	2.00%
SoCalGas | Pension Plan | Maximum
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
Rate of compensation increase	10.00%	10.00%	10.00%
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Rate of compensation increase	10.00%	10.00%	10.00%
SoCalGas | Other Postretirement Benefits Plan
CHANGE IN PROJECTED BENEFIT OBLIGATION
Net obligation at January 1	$ 749	$ 688	$ 646
Service cost	17	14	12
Interest cost	22	25	27
Contributions from plan participants	13	14	13
Actuarial (gain) loss	(49)	57	39
Plan amendments	0	0	0
Benefit payments	(46)	(49)	(49)
Settlements	0	0	0
Transfer of liability from other plans	0	0	0
Net obligation at December 31	706	749	688
CHANGE IN PLAN ASSETS
Fair value of plan assets at January 1	1,159	1,059	916
Actual return on plan assets	51	134	178
Employer contributions	1	1	1
Contributions from plan participants	13	14	13
Benefit payments	(46)	(49)	(49)
Settlements	0	0	0
Transfer of assets from other plans	0	0	0
Fair value of plan assets at December 31	1,178	1,159	1,059
Defined Benefit Plan, Funded (Unfunded) Status of Plan [Abstract]
Funded status at December 31	472	410	371
Net recorded (liability) asset at December 31	472	410	371
Liability, Defined Benefit Plan [Abstract]
Noncurrent assets	472	410	371
Current liabilities	0	0	0
Noncurrent liabilities	0	0	0
Net recorded (liability) asset	472	410	371
NET PERIODIC BENEFIT COST AND AMOUNTS RECOGNIZED IN OCI
Service cost	17	14	12
Interest cost	22	25	27
Expected return on assets	(48)	(43)	(58)
Amortization of prior service cost (credit)	(3)	(2)	(2)
Amortization of actuarial loss (gain)	(7)	(7)	(8)
Settlement charges	0	0	0
Net periodic benefit cost	(19)	(13)	(29)
Regulatory adjustment	19	13	29
Total expense recognized	0	0	0
CHANGES IN PLAN ASSETS AND BENEFIT OBLIGATIONS RECOGNIZED IN OCI (1)
Net loss (gain)	0	0	0
Prior service cost	0	0	0
Transfer of actuarial loss (gain)	0	0	0
Transfer of prior service cost (credit)	0	0	0
Amortization of actuarial loss	0	0	0
Amortization of prior service cost	0	0	0
Total recognized in OCI	0	0	0
Total recognized in net periodic benefit cost and OCI	$ 0	$ 0	$ 0
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
Discount rate	3.05%	2.90%	3.55%
Interest crediting rate	1.94%	1.62%	2.28%
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Discount rate	2.90%	3.55%	4.30%
Expected return on plan assets	4.70%	4.41%	6.38%
Interest crediting rate	1.62%	2.28%	3.36%
EXPECTED CONTRIBUTIONS
Expected employer contributions	$ 1
EXPECTED BENEFIT PAYMENTS
2022	33
2023	33
2024	33
2025	33
2026	33
2027-2031	$ 166
SoCalGas | Other Postretirement Benefits Plan | Pre-65Retiree
ASSUMED HEALTH CARE COST TREND RATES
Health care cost trend rate assumed for next year	6.00%	6.00%	6.25%
Rate to which the cost trend rate is assumed to decline (the ultimate trend)	4.75%	4.75%	4.75%
SoCalGas | Other Postretirement Benefits Plan | Retiree Aged 65 or Older
ASSUMED HEALTH CARE COST TREND RATES
Health care cost trend rate assumed for next year	4.75%	4.75%	4.75%
Rate to which the cost trend rate is assumed to decline (the ultimate trend)	4.50%	4.50%	4.50%
SoCalGas | Other Postretirement Benefits Plan | Minimum
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
Rate of compensation increase	2.70%	2.70%	2.70%
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Rate of compensation increase	2.70%	2.70%	2.00%
SoCalGas | Other Postretirement Benefits Plan | Maximum
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
Rate of compensation increase	10.00%	10.00%	10.00%
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
Rate of compensation increase	10.00%	10.00%	10.00%
Funded Plan | Pension Plan
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Projected benefit obligation	$ 2,612	$ 3,679	$ 3,578
Accumulated benefit obligation	2,277	3,265	3,229
Fair value of plan assets	2,095	2,788	2,662
Funded Plan | Other Postretirement Benefits Plan
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Accumulated benefit obligation	34	33	32
Fair value of plan assets	33	27	25
Funded Plan | San Diego Gas and Electric Company [Member] | Pension Plan
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Projected benefit obligation		887	861
Accumulated benefit obligation		834	818
Fair value of plan assets		819	739
Funded Plan | SoCalGas | Pension Plan
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Projected benefit obligation	2,612	2,792	2,505
Accumulated benefit obligation	2,277	2,431	2,208
Fair value of plan assets	2,095	1,969	1,737
Unfunded Plan | Pension Plan
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Projected benefit obligation	178	184	190
Accumulated benefit obligation	139	146	158
Unfunded Plan | Other Postretirement Benefits Plan
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Accumulated benefit obligation	12	14	16
Unfunded Plan | San Diego Gas and Electric Company [Member] | Pension Plan
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Projected benefit obligation	26	26	34
Accumulated benefit obligation	22	22	27
Unfunded Plan | SoCalGas | Pension Plan
Defined Benefit Plan, Plan with Accumulated Benefit Obligation in Excess of Plan Assets [Abstract]
Projected benefit obligation	35	37	21
Accumulated benefit obligation	$ 29	$ 31	$ 17