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EMPLOYEE BENEFIT PLANS (Tables) | 12 Months Ended
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Dec. 31, 2018
Retirement Benefits [Abstract] |
Schedule Of Defined Benefit Plans, Change In Benefit Obligation And Fair Value Of Plan Assets | The following three tables provide a reconciliation of the changes in the plans’ projected benefit obligations and the fair value of assets during 2018 and 2017, and a statement of the funded status at December 31, 2018 and 2017:
PROJECTED BENEFIT OBLIGATION, FAIR VALUE OF ASSETS AND FUNDED STATUS
SEMPRA ENERGY CONSOLIDATED
(Dollars in millions)
| Pension benefits |  | Other postretirement benefits
| 2018 |  | 2017 |  | 2018 |  | 2017
CHANGE IN PROJECTED BENEFIT OBLIGATION |  |  |  |  |  |  |
Net obligation at January 1 | $ | 3,857 |  |  | $ | 3,679 |  |  | $ | 963 |  |  | $ | 922 |
Service cost | 124 |  |  | 117 |  |  | 21 |  |  | 21 |
Interest cost | 141 |  |  | 151 |  |  | 36 |  |  | 39 |
Contributions from plan participants | — |  |  | — |  |  | 23 |  |  | 20 |
Actuarial (gain) loss | (269 | ) |  | 286 |  |  | (123 | ) |  | 6 |
Plan amendments | 12 |  |  | 1 |  |  | — |  |  | — |
Benefit payments | (115 | ) |  | (182 | ) |  | (74 | ) |  | (63 | )
Special termination benefits | — |  |  | — |  |  | 5 |  |  | 18 |
Acquisition | — |  |  | — |  |  | 21 |  |  | — |
Curtailments | — |  |  | (1 | ) |  | — |  |  | — |
Settlements | (394 | ) |  | (194 | ) |  | — |  |  | — |
Net obligation at December 31 | 3,356 |  |  | 3,857 |  |  | 872 |  |  | 963 |
CHANGE IN PLAN ASSETS |  |  |  |  |  |  |  |  |  |  |
Fair value of plan assets at January 1 | 2,659 |  |  | 2,459 |  |  | 1,209 |  |  | 1,057 |
Actual return on plan assets | (180 | ) |  | 421 |  |  | (56 | ) |  | 185 |
Employer contributions | 190 |  |  | 155 |  |  | 6 |  |  | 10 |
Contributions from plan participants | — |  |  | — |  |  | 23 |  |  | 20 |
Benefit payments | (115 | ) |  | (182 | ) |  | (74 | ) |  | (63 | )
Settlements | (394 | ) |  | (194 | ) |  | — |  |  | — |
Fair value of plan assets at December 31 | 2,160 |  |  | 2,659 |  |  | 1,108 |  |  | 1,209 |
Funded status at December 31 | $ | (1,196 | ) |  | $ | (1,198 | ) |  | $ | 236 |  |  | $ | 246 |
Net recorded (liability) asset at December 31 | $ | (1,196 | ) |  | $ | (1,198 | ) |  | $ | 236 |  |  | $ | 246 |
PROJECTED BENEFIT OBLIGATION, FAIR VALUE OF ASSETS AND FUNDED STATUS
SAN DIEGO GAS & ELECTRIC COMPANY
(Dollars in millions)
| Pension benefits |  | Other postretirement benefits
| 2018 |  | 2017 |  | 2018 |  | 2017
CHANGE IN PROJECTED BENEFIT OBLIGATION |  |  |  |  |  |  |
Net obligation at January 1 | $ | 971 |  |  | $ | 935 |  |  | $ | 185 |  |  | $ | 190 |
Service cost | 30 |  |  | 29 |  |  | 5 |  |  | 5 |
Interest cost | 35 |  |  | 38 |  |  | 7 |  |  | 8 |
Contributions from plan participants | — |  |  | — |  |  | 8 |  |  | 7 |
Actuarial (gain) loss | (63 | ) |  | 50 |  |  | (17 | ) |  | (9 | )
Plan amendments | 8 |  |  | — |  |  | — |  |  | — |
Benefit payments | (22 | ) |  | (83 | ) |  | (21 | ) |  | (16 | )
Special termination benefits | — |  |  | — |  |  | 3 |  |  | — |
Settlements | (145 | ) |  | — |  |  | — |  |  | — |
Transfer of liability from other plans | — |  |  | 2 |  |  | — |  |  | — |
Net obligation at December 31 | 814 |  |  | 971 |  |  | 170 |  |  | 185 |
CHANGE IN PLAN ASSETS |  |  |  |  |  |  |  |  |  |  |
Fair value of plan assets at January 1 | 776 |  |  | 714 |  |  | 195 |  |  | 169 |
Actual return on plan assets | (56 | ) |  | 120 |  |  | (12 | ) |  | 30 |
Employer contributions | 47 |  |  | 22 |  |  | 2 |  |  | 5 |
Contributions from plan participants | — |  |  | — |  |  | 8 |  |  | 7 |
Benefit payments | (22 | ) |  | (83 | ) |  | (21 | ) |  | (16 | )
Settlements | (145 | ) |  | — |  |  | — |  |  | — |
Transfer of assets from other plans | — |  |  | 3 |  |  | — |  |  | — |
Fair value of plan assets at December 31 | 600 |  |  | 776 |  |  | 172 |  |  | 195 |
Funded status at December 31 | $ | (214 | ) |  | $ | (195 | ) |  | $ | 2 |  |  | $ | 10 |
Net recorded (liability) asset at December 31 | $ | (214 | ) |  | $ | (195 | ) |  | $ | 2 |  |  | $ | 10 |
PROJECTED BENEFIT OBLIGATION, FAIR VALUE OF ASSETS AND FUNDED STATUS
SOUTHERN CALIFORNIA GAS COMPANY
(Dollars in millions)
| Pension benefits |  | Other postretirement benefits
| 2018 |  | 2017 |  | 2018 |  | 2017
CHANGE IN PROJECTED BENEFIT OBLIGATION |  |  |  |  |  |  |
Net obligation at January 1 | $ | 2,486 |  |  | $ | 2,343 |  |  | $ | 737 |  |  | $ | 691 |
Service cost | 81 |  |  | 76 |  |  | 15 |  |  | 14 |
Interest cost | 92 |  |  | 98 |  |  | 27 |  |  | 29 |
Contributions from plan participants | — |  |  | — |  |  | 14 |  |  | 13 |
Actuarial (gain) loss | (215 | ) |  | 216 |  |  | (100 | ) |  | 16 |
Benefit payments | (65 | ) |  | (73 | ) |  | (49 | ) |  | (44 | )
Special termination benefits | — |  |  | — |  |  | 2 |  |  | 18 |
Settlements | (231 | ) |  | (175 | ) |  | — |  |  | — |
Transfer of liability from other plans | — |  |  | 1 |  |  | — |  |  | — |
Net obligation at December 31 | 2,148 |  |  | 2,486 |  |  | 646 |  |  | 737 |
CHANGE IN PLAN ASSETS |  |  |  |  |  |  |  |  |  |  |
Fair value of plan assets at January 1 | 1,694 |  |  | 1,579 |  |  | 993 |  |  | 870 |
Actual return on plan assets | (117 | ) |  | 269 |  |  | (43 | ) |  | 151 |
Employer contributions | 104 |  |  | 93 |  |  | 1 |  |  | 3 |
Contributions from plan participants | — |  |  | — |  |  | 14 |  |  | 13 |
Benefit payments | (65 | ) |  | (73 | ) |  | (49 | ) |  | (44 | )
Settlements | (231 | ) |  | (175 | ) |  | — |  |  | — |
Transfer of assets from other plans | — |  |  | 1 |  |  | — |  |  | — |
Fair value of plan assets at December 31 | 1,385 |  |  | 1,694 |  |  | 916 |  |  | 993 |
Funded status at December 31 | $ | (763 | ) |  | $ | (792 | ) |  | $ | 270 |  |  | $ | 256 |
Net recorded (liability) asset at December 31 | $ | (763 | ) |  | $ | (792 | ) |  | $ | 270 |  |  | $ | 256 |
Schedule Of Defined Benefit Plans, Amounts Recognized In Balance Sheet | The net (liability) asset is included in the following categories on the Consolidated Balance Sheets at December 31:
PENSION AND OTHER POSTRETIREMENT BENEFIT OBLIGATIONS, NET OF PLAN ASSETS
(Dollars in millions)
| Pension benefits |  | Other postretirement benefits
| 2018 |  | 2017 |  | 2018 |  | 2017
Sempra Energy Consolidated: |  |  |  |  |  |  |
Noncurrent assets | $ | — |  |  | $ | — |  |  | $ | 272 |  |  | $ | 266 |
Current liabilities | (65 | ) |  | (69 | ) |  | (6 | ) |  | (1 | )
Noncurrent liabilities | (1,131 | ) |  | (1,129 | ) |  | (30 | ) |  | (19 | )
Net recorded (liability) asset | $ | (1,196 | ) |  | $ | (1,198 | ) |  | $ | 236 |  |  | $ | 246 |
SDG&E: |  |  |  |  |  |  |  |  |  |  |
Noncurrent assets | $ | — |  |  | $ | — |  |  | $ | 2 |  |  | $ | 10 |
Current liabilities | (2 | ) |  | (13 | ) |  | — |  |  | — |
Noncurrent liabilities | (212 | ) |  | (182 | ) |  | — |  |  | — |
Net recorded (liability) asset | $ | (214 | ) |  | $ | (195 | ) |  | $ | 2 |  |  | $ | 10 |
SoCalGas: |  |  |  |  |  |  |  |  |  |  |
Noncurrent assets | $ | — |  |  | $ | — |  |  | $ | 270 |  |  | $ | 256 |
Current liabilities | (3 | ) |  | (3 | ) |  | — |  |  | — |
Noncurrent liabilities | (760 | ) |  | (789 | ) |  | — |  |  | — |
Net recorded (liability) asset | $ | (763 | ) |  | $ | (792 | ) |  | $ | 270 |  |  | $ | 256 |
Schedule Of Defined Benefit Plans, Amounts In Accumulated Other Comprehensive Income | Amounts recorded in AOCI at December 31, net of income tax effects and amounts recorded as regulatory assets, are as follows:
AMOUNTS IN ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)
(Dollars in millions)
| Pension benefits |  | Other postretirement benefits
| 2018 |  | 2017 |  | 2018 |  | 2017
Sempra Energy Consolidated: |  |  |  |  |  |  |
Net actuarial (loss) gain | $ | (114 | ) |  | $ | (84 | ) |  | $ | 8 |  |  | $ | 4 |
Prior service cost | (12 | ) |  | (4 | ) |  | — |  |  | — |
Total | $ | (126 | ) |  | $ | (88 | ) |  | $ | 8 |  |  | $ | 4 |
SDG&E: |  |  |  |  |  |  |  |  |  |  |
Net actuarial loss | $ | (4 | ) |  | $ | (8 | ) |  |  |  |  |  |
Prior service cost | (6 | ) |  | — |  |  |  |  |
Total | $ | (10 | ) |  | $ | (8 | ) |  |  |  |
SoCalGas: |  |  |  |  |  |  |  |  |  |  |
Net actuarial loss | $ | (6 | ) |  | $ | (6 | ) |  |  |  |  |  |
Prior service cost | (2 | ) |  | (2 | ) |  |  |  |  |  |
Total | $ | (8 | ) |  | $ | (8 | ) |  |  |  |  |  |
Schedule Of Defined Benefit Plans, Pension Plans With Benefit Obligations In Excess Of Plan Assets | The following table shows the obligations of funded pension plans with benefit obligations in excess of plan assets at December 31:
OBLIGATIONS OF FUNDED PENSION PLANS
(Dollars in millions)
| 2018 |  | 2017
Sempra Energy Consolidated: |  |  |
Projected benefit obligation | $ | 3,130 |  |  | $ | 3,623 |
Accumulated benefit obligation | 2,894 |  |  | 3,334 |
Fair value of plan assets | 2,160 |  |  | 2,659 |
SDG&E: |  |  |  |
Projected benefit obligation | $ | 788 |  |  | $ | 939 |
Accumulated benefit obligation | 762 |  |  | 900 |
Fair value of plan assets | 600 |  |  | 776 |
SoCalGas: |  |  |  |  |
Projected benefit obligation | $ | 2,123 |  |  | $ | 2,462 |
Accumulated benefit obligation | 1,919 |  |  | 2,220 |
Fair value of plan assets | 1,385 |  |  | 1,694 |
We also have unfunded pension plans at Sempra Energy, SDG&E, SoCalGas, IEnova and Chilquinta Energía. The following table shows the obligations of unfunded pension plans at December 31:
OBLIGATIONS OF UNFUNDED PENSION PLANS
(Dollars in millions)
| 2018 |  | 2017
Sempra Energy Consolidated: |  |  |
Projected benefit obligation | $ | 226 |  |  | $ | 234 |
Accumulated benefit obligation | 201 |  |  | 215 |
SDG&E: |  |  |  |
Projected benefit obligation | $ | 26 |  |  | $ | 32 |
Accumulated benefit obligation | 19 |  |  | 30 |
SoCalGas: |  |  |  |  |
Projected benefit obligation | $ | 25 |  |  | $ | 24 |
Accumulated benefit obligation | 21 |  |  | 21 |
Sempra Energy, SDG&E and SoCalGas each have a funded other postretirement benefit plan. The following table shows the obligations of funded other postretirement benefit plans with accumulated postretirement benefit obligations in excess of plan assets at December 31:
OBLIGATIONS OF FUNDED OTHER POSTRETIREMENT BENEFIT PLANS
(Dollars in millions)
| 2018 |  | 2017
Sempra Energy Consolidated: |  |  |
Accumulated postretirement benefit obligation | $ | 30 |  |  | $ | 32 |
Fair value of plan assets | 20 |  |  | 21 |
We also have unfunded other postretirement benefit plans at Sempra Energy and Chilquinta Energía. The following table shows the obligations of unfunded other postretirement benefit plans at December 31:
OBLIGATIONS OF UNFUNDED OTHER POSTRETIREMENT BENEFIT PLANS
(Dollars in millions)
| 2018 |  | 2017
Sempra Energy Consolidated: |  |  |
Accumulated postretirement benefit obligation | $ | 26 |  |  | $ | 9 |
Schedule of Net Benefit Costs | The following tables provide the components of net periodic benefit cost and pretax amounts recognized in OCI for the years ended December 31:
NET PERIODIC BENEFIT COST AND AMOUNTS RECOGNIZED IN OCI
SEMPRA ENERGY CONSOLIDATED
(Dollars in millions)
| Pension benefits |  | Other postretirement benefits
| 2018 |  | 2017 |  | 2016 |  | 2018 |  | 2017 |  | 2016
NET PERIODIC BENEFIT COST |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | 124 |  |  | $ | 117 |  |  | $ | 107 |  |  | $ | 21 |  |  | $ | 21 |  |  | $ | 20 |
Interest cost | 141 |  |  | 151 |  |  | 160 |  |  | 36 |  |  | 39 |  |  | 42 |
Expected return on assets | (157 | ) |  | (161 | ) |  | (166 | ) |  | (70 | ) |  | (66 | ) |  | (69 | )
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prior service cost | 11 |  |  | 11 |  |  | 11 |  |  | 1 |  |  | 1 |  |  | — |
Actuarial loss (gain) | 23 |  |  | 36 |  |  | 30 |  |  | (6 | ) |  | (4 | ) |  | (1 | )
Settlement charges | 66 |  |  | 38 |  |  | 16 |  |  | — |  |  | — |  |  | — |
Special termination benefits | — |  |  | — |  |  | — |  |  | 5 |  |  | 18 |  |  | 26 |
Net periodic benefit cost | 208 |  |  | 192 |  |  | 158 |  |  | (13 | ) |  | 9 |  |  | 18 |
Regulatory adjustment | (30 | ) |  | (42 | ) |  | (57 | ) |  | 17 |  |  | — |  |  | (11 | )
Total expense recognized | 178 |  |  | 150 |  |  | 101 |  |  | 4 |  |  | 9 |  |  | 7 |
CHANGES IN PLAN ASSETS AND BENEFIT OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
RECOGNIZED IN OCI |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss (gain) | 56 |  |  | — |  |  | 26 |  |  | (4 | ) |  | (2 | ) |  | (2 | )
Prior service cost | 12 |  |  | 1 |  |  | — |  |  | — |  |  | — |  |  | — |
Amortization of actuarial loss | (12 | ) |  | (10 | ) |  | (10 | ) |  | — |  |  | — |  |  | — |
Amortization of prior service cost | (2 | ) |  | (1 | ) |  | (1 | ) |  | — |  |  | — |  |  | — |
Settlements | (12 | ) |  | (8 | ) |  | — |  |  | — |  |  | — |  |  | — |
Total recognized in OCI | 42 |  |  | (18 | ) |  | 15 |  |  | (4 | ) |  | (2 | ) |  | (2 | )
Total recognized in net periodic benefit cost and OCI | $ | 220 |  |  | $ | 132 |  |  | $ | 116 |  |  | $ | — |  |  | $ | 7 |  |  | $ | 5 |
NET PERIODIC BENEFIT COST AND AMOUNTS RECOGNIZED IN OCI
SAN DIEGO GAS & ELECTRIC COMPANY
(Dollars in millions)
| Pension benefits |  | Other postretirement benefits
| 2018 |  | 2017 |  | 2016 |  | 2018 |  | 2017 |  | 2016
NET PERIODIC BENEFIT COST |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | 30 |  |  | $ | 29 |  |  | $ | 29 |  |  | $ | 5 |  |  | $ | 5 |  |  | $ | 5 |
Interest cost | 35 |  |  | 38 |  |  | 41 |  |  | 7 |  |  | 8 |  |  | 7 |
Expected return on assets | (47 | ) |  | (47 | ) |  | (49 | ) |  | (13 | ) |  | (11 | ) |  | (12 | )
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prior service cost | 2 |  |  | 1 |  |  | 1 |  |  | 3 |  |  | 3 |  |  | 3 |
Actuarial loss (gain) | 1 |  |  | 9 |  |  | 10 |  |  | (3 | ) |  | — |  |  | (1 | )
Settlement charges | 26 |  |  | — |  |  | 16 |  |  | — |  |  | — |  |  | — |
Special termination benefits | — |  |  | — |  |  | — |  |  | 3 |  |  | — |  |  | 14 |
Net periodic benefit cost | 47 |  |  | 30 |  |  | 48 |  |  | 2 |  |  | 5 |  |  | 16 |
Regulatory adjustment | (8 | ) |  | (8 | ) |  | (45 | ) |  | — |  |  | — |  |  | (14 | )
Total expense recognized | 39 |  |  | 22 |  |  | 3 |  |  | 2 |  |  | 5 |  |  | 2 |
CHANGES IN PLAN ASSETS AND BENEFIT OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
RECOGNIZED IN OCI |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net (gain) loss | (1 | ) |  | 2 |  |  | 1 |  |  | — |  |  | — |  |  | — |
Prior service cost | 8 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Amortization of actuarial loss | (1 | ) |  | (1 | ) |  | (1 | ) |  | — |  |  | — |  |  | — |
Settlements | (4 | ) |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Total recognized in OCI | 2 |  |  | 1 |  |  | — |  |  | — |  |  | — |  |  | — |
Total recognized in net periodic benefit cost and OCI | $ | 41 |  |  | $ | 23 |  |  | $ | 3 |  |  | $ | 2 |  |  | $ | 5 |  |  | $ | 2 |
NET PERIODIC BENEFIT COST AND AMOUNTS RECOGNIZED IN OCI
SOUTHERN CALIFORNIA GAS COMPANY
(Dollars in millions)
| Pension benefits |  | Other postretirement benefits
| 2018 |  | 2017 |  | 2016 |  | 2018 |  | 2017 |  | 2016
NET PERIODIC BENEFIT COST |  |  |  |  |  |  |  |  |  |  |
Service cost | $ | 81 |  |  | $ | 76 |  |  | $ | 67 |  |  | $ | 15 |  |  | $ | 14 |  |  | $ | 14 |
Interest cost | 92 |  |  | 98 |  |  | 101 |  |  | 27 |  |  | 29 |  |  | 32 |
Expected return on assets | (98 | ) |  | (103 | ) |  | (103 | ) |  | (56 | ) |  | (53 | ) |  | (56 | )
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prior service cost (credit) | 8 |  |  | 9 |  |  | 9 |  |  | (3 | ) |  | (3 | ) |  | (4 | )
Actuarial loss (gain) | 13 |  |  | 19 |  |  | 11 |  |  | (2 | ) |  | (3 | ) |  | — |
Settlement charges | 32 |  |  | 30 |  |  | — |  |  | — |  |  | — |  |  | — |
Special termination benefits | — |  |  | — |  |  | — |  |  | 2 |  |  | 18 |  |  | 11 |
Net periodic benefit cost | 128 |  |  | 129 |  |  | 85 |  |  | (17 | ) |  | 2 |  |  | (3 | )
Regulatory adjustment | (22 | ) |  | (34 | ) |  | (12 | ) |  | 17 |  |  | — |  |  | 3 |
Total expense recognized | 106 |  |  | 95 |  |  | 73 |  |  | — |  |  | 2 |  |  | — |
CHANGES IN PLAN ASSETS AND BENEFIT OBLIGATIONS |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
RECOGNIZED IN OCI |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net loss | 1 |  |  | — |  |  | 4 |  |  | — |  |  | — |  |  | — |
Prior service cost | — |  |  | — |  |  | 2 |  |  | — |  |  | — |  |  | — |
Amortization of prior service cost | (1 | ) |  | (1 | ) |  | — |  |  | — |  |  | — |  |  | — |
Total recognized in OCI | — |  |  | (1 | ) |  | 6 |  |  | — |  |  | — |  |  | — |
Total recognized in net periodic benefit cost and OCI | $ | 106 |  |  | $ | 94 |  |  | $ | 79 |  |  | $ | — |  |  | $ | 2 |  |  | $ | — |
Schedule of Assumptions Used | The significant assumptions affecting benefit obligation and net periodic benefit cost are as follows:
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE BENEFIT OBLIGATION
AT DECEMBER 31 |  |  |
| Pension benefits |  | Other postretirement benefits
| 2018 |  | 2017 |  | 2018 |  | 2017
Sempra Energy Consolidated: |  |  |  |  |  |  |
Discount rate | 4.30 | % |  | 3.65 | % |  | 4.30 | % |  | 3.70 | %
Interest crediting rate(1)(2) | 3.36 |  |  | 2.80 |  |  | 3.36 |  |  | 2.80 |
Rate of compensation increase | 2.00-10.00 |  |  | 2.00-10.00 |  |  | 2.00-10.00 |  |  | 2.00-10.00 |
SDG&E: |  |  |  |  |  |  |
Discount rate | 4.29 | % |  | 3.64 | % |  | 4.30 | % |  | 3.65 | %
Interest crediting rate(1)(2) | 3.36 |  |  | 2.80 |  |  | 3.36 |  |  | 2.80 |
Rate of compensation increase | 2.00-10.00 |  |  | 2.00-10.00 |  |  | 2.00-10.00 |  |  | 2.00-10.00 |
SoCalGas: |  |  |  |  |  |  |
Discount rate | 4.30 | % |  | 3.65 | % |  | 4.30 | % |  | 3.70 | %
Interest crediting rate(1)(2) | 3.36 |  |  | 2.80 |  |  | 3.36 |  |  | 2.80 |
Rate of compensation increase | 2.00-10.00 |  |  | 2.00-10.00 |  |  | 2.00-10.00 |  |  | 2.00-10.00 |
(1) Interest crediting rate for pension benefits applies only to funded cash balance plans. (2) Interest crediting rate for other postretirement benefits applies only to interest bearing health retirement accounts at SDG&E and SoCalGas.
WEIGHTED-AVERAGE ASSUMPTIONS USED TO DETERMINE NET PERIODIC BENEFIT COST
YEARS ENDED DECEMBER 31 |  |  |
| Pension benefits |  | Other postretirement benefits
| 2018 |  | 2017 |  | 2016 |  | 2018 |  | 2017 |  | 2016
Sempra Energy Consolidated: |  |  |  |  |  |  |  |  |  |  |
Discount rate | 3.65 | % |  | 4.08 | % |  | 4.46 | % |  | 3.70 | % |  | 4.19 | % |  | 4.49 | %
Expected return on plan assets | 7.00 |  |  | 7.00 |  |  | 7.00 |  |  | 6.49 |  |  | 6.47 |  |  | 6.98 |
Interest crediting rate(1)(2) | 2.80 |  |  | 2.86 |  |  | 3.03 |  |  | 2.80 |  |  | 2.86 |  |  | 3.03 |
Rate of compensation increase | 2.00-10.00 |  |  | 2.00-10.00 |  |  | 2.00-10.00 |  |  | 2.00-10.00 |  |  | 2.00-10.00 |  |  | 2.00-10.00 |
SDG&E: |  |  |  |  |  |  |  |  |  |  |
Discount rate | 3.64 | % |  | 4.08 | % |  | 4.35 | % |  | 3.65 | % |  | 4.15 | % |  | 4.50 | %
Expected return on plan assets | 7.00 |  |  | 7.00 |  |  | 7.00 |  |  | 6.94 |  |  | 6.91 |  |  | 6.90 |
Interest crediting rate(1)(2) | 2.80 |  |  | 2.86 |  |  | 3.03 |  |  | 2.80 |  |  | 2.86 |  |  | 3.03 |
Rate of compensation increase | 2.00-10.00 |  |  | 2.00-10.00 |  |  | 2.00-10.00 |  |  | 2.00-10.00 |  |  | 2.00-10.00 |  |  | 2.00-10.00 |
SoCalGas: |  |  |  |  |  |  |  |  |  |  |
Discount rate | 3.65 | % |  | 4.10 | % |  | 4.50 | % |  | 3.70 | % |  | 4.20 | % |  | 4.50 | %
Expected return on plan assets | 7.00 |  |  | 7.00 |  |  | 7.00 |  |  | 6.38 |  |  | 6.37 |  |  | 7.00 |
Interest crediting rate(1)(2) | 2.80 |  |  | 2.86 |  |  | 3.03 |  |  | 2.80 |  |  | 2.86 |  |  | 3.03 |
Rate of compensation increase | 2.00-10.00 |  |  | 2.00-10.00 |  |  | 2.00-10.00 |  |  | 2.00-10.00 |  |  | 2.00-10.00 |  |  | 2.00-10.00 |
(1) Interest crediting rate for pension benefits applies only to funded cash balance plans. (2) Interest crediting rate for other postretirement benefits applies only to interest bearing health retirement accounts at SDG&E and SoCalGas.Following are the health care cost trend rates applicable to our postretirement benefit plans:
ASSUMED HEALTH CARE COST TREND RATES
AT DECEMBER 31 |  |  |  |  |  |  |  |  |  |  |
| Other postretirement benefit plans
| Pre-65 retirees |  | Retirees aged 65 years and older
| 2018 |  | 2017 |  | 2016 |  | 2018 |  | 2017 |  | 2016
Health care cost trend rate assumed for next year | 6.50 | % |  | 7.00 | % |  | 8.00 | % |  | 4.75 | % |  | 5.00 | % |  | 5.50 | %
Rate to which the cost trend rate is assumed to decline (the ultimate trend) | 4.75 | % |  | 5.00 | % |  | 5.00 | % |  | 4.50 | % |  | 4.50 | % |  | 4.50 | %
Year the rate reaches the ultimate trend | 2025 |  |  | 2022 |  |  | 2022 |  |  | 2022 |  |  | 2022 |  |  | 2022 |
Schedule of Health Care Cost Trend Rates | Assumed health care cost trend rates have a significant effect on the amounts that we report for the health care plan costs. Following are the health care cost trend rates applicable to our postretirement benefit plans:
ASSUMED HEALTH CARE COST TREND RATES
AT DECEMBER 31 |  |  |  |  |  |  |  |  |  |  |
| Other postretirement benefit plans
| Pre-65 retirees |  | Retirees aged 65 years and older
| 2018 |  | 2017 |  | 2016 |  | 2018 |  | 2017 |  | 2016
Health care cost trend rate assumed for next year | 6.50 | % |  | 7.00 | % |  | 8.00 | % |  | 4.75 | % |  | 5.00 | % |  | 5.50 | %
Rate to which the cost trend rate is assumed to decline (the ultimate trend) | 4.75 | % |  | 5.00 | % |  | 5.00 | % |  | 4.50 | % |  | 4.50 | % |  | 4.50 | %
Year the rate reaches the ultimate trend | 2025 |  |  | 2022 |  |  | 2022 |  |  | 2022 |  |  | 2022 |  |  | 2022 |
Schedule Of Defined Benefit Plans, Fair Value Of Plan Assets By Level In Fair Value Hierarchy | The fair values of our pension plan assets by asset category are as follows:
FAIR VALUE MEASUREMENTS – INVESTMENT ASSETS OF PENSION PLANS
(Dollars in millions)
| Fair value at December 31, 2018
| Level 1 |  | Level 2 |  | Total
Sempra Energy Consolidated: |  |  |  |  |
Equity securities: |  |  |  |  |
Domestic | $ | 727 |  |  | $ | — |  |  | $ | 727 |
International | 437 |  |  | — |  |  | 437 |
Registered investment companies | 74 |  |  | — |  |  | 74 |
Fixed income securities: |  |  |  |  |  |  |  |
Domestic government bonds | 197 |  |  | 29 |  |  | 226 |
International government bonds | — |  |  | 8 |  |  | 8 |
Domestic corporate bonds | — |  |  | 311 |  |  | 311 |
International corporate bonds | — |  |  | 53 |  |  | 53 |
Registered investment companies | — |  |  | 1 |  |  | 1 |
Total investment assets in the fair value hierarchy | $ | 1,435 |  |  | $ | 402 |  |  | 1,837 |
Investments measured at NAV: |  |  |  |  |
Common/collective trusts |  |  |  |  | 326 |
Private equity funds |  |  |  |  | 4 |
Total investment assets(1) |  |  |  |  |  |  | $ | 2,167 |
SDG&E’s proportionate share of investment assets |  |  |  |  | $ | 602 |
SoCalGas’ proportionate share of investment assets |  |  |  |  | $ | 1,389 |
| Fair value at December 31, 2017
| Level 1 |  | Level 2 |  | Total
Sempra Energy Consolidated: |  |  |  |  |
Equity securities: |  |  |  |  |  |  |  |
Domestic | $ | 946 |  |  | $ | — |  |  | $ | 946 |
International | 538 |  |  | — |  |  | 538 |
Registered investment companies | 102 |  |  | — |  |  | 102 |
Fixed income securities: |  |  |  |  |  |  |  |
Domestic government bonds | 242 |  |  | 27 |  |  | 269 |
International government bonds | — |  |  | 12 |  |  | 12 |
Domestic corporate bonds | — |  |  | 338 |  |  | 338 |
International corporate bonds | — |  |  | 64 |  |  | 64 |
Registered investment companies | — |  |  | 6 |  |  | 6 |
Other | — |  |  | 1 |  |  | 1 |
Total investment assets in the fair value hierarchy | $ | 1,828 |  |  | $ | 448 |  |  | 2,276 |
Investments measured at NAV: |  |  |  |  |
Common/collective trusts |  |  |  |  | 384 |
Private equity funds |  |  |  |  | 4 |
Total investment assets(2) |  |  |  |  | $ | 2,664 |
SDG&E’s proportionate share of investment assets |  |  |  |  | $ | 777 |
SoCalGas’ proportionate share of investment assets |  |  |  |  | $ | 1,697 |
(1) | Excludes cash and cash equivalents of $14 million and accounts payable of $21 million.
(2) | Excludes cash and cash equivalents of $13 million and accounts payable of $18 million.
The fair values by asset category of the PBOP plan assets held in the pension master trust and in the additional trusts for SoCalGas’ PBOP plans and SDG&E’s PBOP plan trusts are as follows:
FAIR VALUE MEASUREMENTS – INVESTMENT ASSETS OF OTHER POSTRETIREMENT BENEFIT PLANS
(Dollars in millions)
| Fair value at December 31, 2018
| Level 1 |  | Level 2 |  | Total
SDG&E: |  |  |  |  |
Equity securities: |  |  |  |  |
Domestic | $ | 37 |  |  | $ | — |  |  | $ | 37 |
International | 22 |  |  | — |  |  | 22 |
Registered investment companies | 59 |  |  | — |  |  | 59 |
Fixed income securities: |  |  |  |  |  |  |  |
Domestic government bonds | 10 |  |  | 1 |  |  | 11 |
Domestic corporate bonds | — |  |  | 16 |  |  | 16 |
International corporate bonds | — |  |  | 3 |  |  | 3 |
Registered investment companies | — |  |  | 7 |  |  | 7 |
Total investment assets in the fair value hierarchy | 128 |  |  | 27 |  |  | 155 |
Investments measured at NAV – Common/collective trusts |  |  |  |  | 17 |
Total investment assets(1) |  |  |  |  | 172 |
SoCalGas: |  |  |  |  |  |  |  |
Equity securities: |  |  |  |  |  |  |  |
Domestic | 66 |  |  | — |  |  | 66 |
International | 39 |  |  | — |  |  | 39 |
Registered investment companies | 62 |  |  | — |  |  | 62 |
Fixed income securities: |  |  |  |  |  |  |  |
Domestic government bonds | 236 |  |  | 13 |  |  | 249 |
International government bonds | 1 |  |  | 4 |  |  | 5 |
Domestic corporate bonds | — |  |  | 175 |  |  | 175 |
International corporate bonds | — |  |  | 21 |  |  | 21 |
Registered investment companies | — |  |  | 64 |  |  | 64 |
Derivative financial instruments | (4 | ) |  | — |  |  | (4 | )
Total investment assets in the fair value hierarchy | 400 |  |  | 277 |  |  | 677 |
Investments measured at NAV – Common/collective trusts |  |  |  |  | 237 |
Total investment assets(2) |  |  |  |  | 914 |
Other Sempra Energy: |  |  |  |  |  |  |  |
Equity securities: |  |  |  |  |  |  |  |
Domestic | 6 |  |  | — |  |  | 6 |
International | 4 |  |  | — |  |  | 4 |
Fixed income securities: |  |  |  |  |  |  |  |
Domestic government bonds | 2 |  |  | — |  |  | 2 |
Domestic corporate bonds | — |  |  | 2 |  |  | 2 |
Registered investment companies | — |  |  | 1 |  |  | 1 |
Total investment assets in the fair value hierarchy | 12 |  |  | 3 |  |  | 15 |
Investments measured at NAV – Common/collective trusts |  |  |  |  | 4 |
Private equity funds |  |  |  |  | 1 |
Total other Sempra Energy investment assets |  |  |  |  | 20 |
Total Sempra Energy Consolidated investment assets in the fair value hierarchy | $ | 540 |  |  | $ | 307 |  |  |
Total Sempra Energy Consolidated investment assets(3) |  |  |  |  |  |  | $ | 1,106 |
(1) | Excludes cash and cash equivalents of $1 million and accounts payable of $1 million held in SDG&E PBOP plan trusts.
(2) | Excludes cash and cash equivalents of $6 million and accounts payable of $4 million held in SoCalGas PBOP plan trusts.
(3) | Excludes cash and cash equivalents of $7 million and accounts payable of $5 million at Sempra Energy Consolidated.
FAIR VALUE MEASUREMENTS – INVESTMENT ASSETS OF OTHER POSTRETIREMENT BENEFIT PLANS
(Dollars in millions)
| Fair value at December 31, 2017
| Level 1 |  | Level 2 |  | Total
SDG&E: |  |  |  |  |
Equity securities: |  |  |  |  |
Domestic | $ | 46 |  |  | $ | — |  |  | $ | 46 |
International | 26 |  |  | — |  |  | 26 |
Registered investment companies | 52 |  |  | — |  |  | 52 |
Fixed income securities: |  |  |  |  |  |  |  |
Domestic government bonds | 12 |  |  | 1 |  |  | 13 |
International government bonds | — |  |  | 1 |  |  | 1 |
Domestic corporate bonds | — |  |  | 17 |  |  | 17 |
International corporate bonds | — |  |  | 3 |  |  | 3 |
Registered investment companies | — |  |  | 17 |  |  | 17 |
Total investment assets in the fair value hierarchy | 136 |  |  | 39 |  |  | 175 |
Investments measured at NAV – Common/collective trusts |  |  |  |  | 20 |
Total investment assets(1) |  |  |  |  | 195 |
SoCalGas: |  |  |  |  |  |  |  |
Equity securities: |  |  |  |  |  |  |  |
Domestic | 78 |  |  | — |  |  | 78 |
International | 44 |  |  | — |  |  | 44 |
Registered investment companies | 41 |  |  | — |  |  | 41 |
Fixed income securities: |  |  |  |  |  |  |  |
Domestic government bonds | 125 |  |  | 13 |  |  | 138 |
International government bonds | — |  |  | 7 |  |  | 7 |
Domestic corporate bonds | — |  |  | 164 |  |  | 164 |
International corporate bonds | — |  |  | 28 |  |  | 28 |
Registered investment companies | — |  |  | 85 |  |  | 85 |
Total investment assets in the fair value hierarchy | 288 |  |  | 297 |  |  | 585 |
Investments measured at NAV – Common/collective trusts |  |  |  |  | 406 |
Total investment assets(2) |  |  |  |  | 991 |
Other Sempra Energy: |  |  |  |  |  |  |  |
Equity securities: |  |  |  |  |  |  |  |
Domestic | 7 |  |  | — |  |  | 7 |
International | 5 |  |  | — |  |  | 5 |
Registered investment companies | 1 |  |  | — |  |  | 1 |
Fixed income securities: |  |  |  |  |  |  |  |
Domestic government bonds | 1 |  |  | 1 |  |  | 2 |
Domestic corporate bonds | — |  |  | 2 |  |  | 2 |
International corporate bonds | — |  |  | 1 |  |  | 1 |
Total investment assets in the fair value hierarchy | 14 |  |  | 4 |  |  | 18 |
Investments measured at NAV – Common/collective trusts |  |  |  |  | 2 |
Private equity funds |  |  |  |  | 1 |
Total other Sempra Energy investment assets |  |  |  |  | 21 |
Total Sempra Energy Consolidated investment assets in the fair value hierarchy | $ | 438 |  |  | $ | 340 |  |  |
Total Sempra Energy Consolidated investment assets(3) |  |  |  |  |  |  | $ | 1,207 |
(1) | Excludes cash and cash equivalents of $1 million and accounts payable of $1 million held in SDG&E PBOP plan trusts.
(2) | Excludes cash and cash equivalents of $4 million and accounts payable of $2 million held in SoCalGas PBOP plan trusts.
(3) Excludes cash and cash equivalents of $5 million and accounts payable of $3 million at Sempra Energy Consolidated.
Schedule Of Defined Benefit Plans, Estimated Future Employer Contributions In Next Fiscal Year | We expect to contribute the following amounts to our pension and PBOP plans in 2019:
EXPECTED CONTRIBUTIONS |  |  |  |  |
(Dollars in millions) |  |  |  |  |
| Sempra Energy Consolidated |  | SDG&E |  | SoCalGas
Pension plans | $ | 228 |  |  | $ | 40 |  |  | $ | 118 |
Other postretirement benefit plans | 10 |  |  | — |  |  | 1 |
Schedule of Expected Benefit Payments | The following table shows the total benefits we expect to pay for the next 10 years to current employees and retirees from the plans or from company assets.
EXPECTED BENEFIT PAYMENTS
(Dollars in millions)
| Sempra Energy Consolidated |  | SDG&E |  | SoCalGas
| Pension benefits |  | Other postretirement benefits |  | Pension benefits |  | Other postretirement benefits |  | Pension benefits |  | Other postretirement benefits
2019 | $ | 416 |  |  | $ | 54 |  |  | $ | 109 |  |  | $ | 10 |  |  | $ | 207 |  |  | $ | 36 |
2020 | 270 |  |  | 51 |  |  | 69 |  |  | 10 |  |  | 159 |  |  | 36 |
2021 | 268 |  |  | 52 |  |  | 64 |  |  | 10 |  |  | 154 |  |  | 37 |
2022 | 246 |  |  | 52 |  |  | 61 |  |  | 11 |  |  | 152 |  |  | 37 |
2023 | 236 |  |  | 52 |  |  | 62 |  |  | 11 |  |  | 149 |  |  | 38 |
2024-2028 | 1,097 |  |  | 257 |  |  | 282 |  |  | 51 |  |  | 698 |  |  | 187 |
Schedule Of Defined Benefit Plans Contributions | Employer contributions to the savings plans were as follows:
EMPLOYER CONTRIBUTIONS TO SAVINGS PLANS
(Dollars in millions)
| 2018 |  | 2017 |  | 2016
Sempra Energy Consolidated | $ | 43 |  |  | $ | 41 |  |  | $ | 42 |
SDG&E | 15 |  |  | 14 |  |  | 15 |
SoCalGas | 23 |  |  | 22 |  |  | 22 |

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