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Jointly Owned Utility Facilities (Tables)
 12 Months Ended
Dec. 31, 2023
Jointly Owned Utility Plant Interests [Line Items]  
Schedule of Jointly Owned Utility Facilities
The amounts shown in the table below represent the Company's share in each jointly owned facility included in property, plant and equipment, net as of December 31, 2023 (dollars in millions):
AccumulatedConstruction
CompanyFacility InDepreciation andWork-in-
ShareServiceAmortizationProgress
PacifiCorp:
Jim Bridger Nos. 1-467 %$1,596 $996 $26 
Hunter No. 194 510 237 4 
Hunter No. 260 316 151 2 
Wyodak80 491 285 — 
Colstrip Nos. 3 and 410 262 199 — 
Hermiston50 191 111 3 
Craig Nos. 1 and 219 372 341 — 
Hayden No. 125 77 55 — 
Hayden No. 213 45 32 — 
Transmission and distribution facilitiesVarious900 283 192 
Total PacifiCorp4,760 2,690 227 
MidAmerican Energy:
Louisa No. 188 %983 531 5 
Quad Cities Nos. 1 and 2(1)
25 737 496 11 
Walter Scott, Jr. No. 379 1,017 888 14 
Walter Scott, Jr. No. 4(2)
60 170 123 8 
George Neal No. 441 330 191 6 
Ottumwa No. 1(2)
52 433 299 8 
George Neal No. 372 557 375 20 
Transmission facilitiesVarious274 100 3 
Total MidAmerican Energy4,501 3,003 75 
NV Energy:
Navajo11 %— 2 — 
Valmy50 405 351 4 
On Line Transmission Line25 172 42 1 
Transmission facilitiesVarious64 30 6 
Total NV Energy641 425 11 
BHE Pipeline Group:
Ellisburg Pool39 %33 12 — 
Ellisburg Station50 29 9 2 
Harrison50 56 19 1 
Leidy50 148 49 2 
Oakford50 216 73 4 
Common FacilitiesVarious275 179 — 
Total BHE Pipeline Group757 341 9 
Total$10,659 $6,459 $322 
(1)Includes amounts related to nuclear fuel.
(2)Facility in-service and accumulated depreciation and amortization amounts are net of credits applied under Iowa regulatory arrangements totaling $891 million and $183 million, respectively.
PAC  
Jointly Owned Utility Plant Interests [Line Items]  
Schedule of Jointly Owned Utility Facilities
The amounts shown in the table below represent PacifiCorp's share in each jointly owned facility included in property, plant and equipment, net as of December 31, 2023 (dollars in millions):
FacilityAccumulatedConstruction
PacifiCorpinDepreciation andWork-in-
ShareServiceAmortizationProgress
Jim Bridger Nos. 1 - 4
67 %$1,596 $996 $26 
Hunter No. 194 510 237 4 
Hunter No. 2
60 316 151 2 
Wyodak
80 491 285 — 
Colstrip Nos. 3 and 4
10 262 199 — 
Hermiston
50 191 111 3 
Craig Nos. 1 and 219 372 341 — 
Hayden No. 125 77 55 — 
Hayden No. 213 45 32 — 
Transmission and distribution facilitiesVarious900 283 192 
Total$4,760 $2,690 $227 
MEC  
Jointly Owned Utility Plant Interests [Line Items]  
Schedule of Jointly Owned Utility Facilities
The amounts shown in the table below represent MidAmerican Energy's share in each jointly owned facility included in property, plant and equipment, net as of December 31, 2023 (dollars in millions):
AccumulatedConstruction
CompanyPlant inDepreciation andWork-in-
Share
Service
AmortizationProgress
Louisa Unit No. 188 %$983 $531 $5 
Quad Cities Unit Nos. 1 & 2(1)
25 737 496 11 
Walter Scott, Jr. Unit No. 379 1,017 888 14 
Walter Scott, Jr. Unit No. 4(2)
60 170 123 8 
George Neal Unit No. 441 330 191 6 
Ottumwa Unit No. 1(2)
52 433 299 8 
George Neal Unit No. 372 557 375 20 
Transmission facilities
Various
274 100 3 
Total$4,501 $3,003 $75 
(1)Includes amounts related to nuclear fuel.
(2)Plant in-service and accumulated depreciation and amortization amounts are net of credits applied under Iowa regulatory arrangements totaling $891 million and $183 million, respectively.
NPC  
Jointly Owned Utility Plant Interests [Line Items]  
Schedule of Jointly Owned Utility Facilities
The amounts shown in the table below represent Nevada Power's share in each jointly owned facility included in property, plant and equipment, net as of December 31, 2023 (dollars in millions):
NevadaConstruction
Power'sUtilityAccumulatedWork-in-
SharePlantDepreciationProgress
Navajo Generating Station(1)
11 %$— $2 $— 
ON Line Transmission Line19 129 28 1 
Other transmission facilitiesVarious60 28 1 
Total$189 $58 $2 

(1)Represents Nevada Power's proportionate share of capitalized asset retirement costs to retire the Navajo Generating Station, which was shut down in November 2019.
SPPC  
Jointly Owned Utility Plant Interests [Line Items]  
Schedule of Jointly Owned Utility Facilities
The amounts shown in the table below represent Sierra Pacific's share in each jointly owned facility included in property, plant and equipment, net as of December 31, 2023 (dollars in millions):
SierraConstruction
Pacific'sUtilityAccumulatedWork-in-
SharePlantDepreciationProgress
Valmy Generating Station50 %$405 $351 $4 
ON Line Transmission Line6 43 14 — 
Valmy Transmission50 4 2 5 
Total$452 $367 $9 
EEGH  
Jointly Owned Utility Plant Interests [Line Items]  
Schedule of Jointly Owned Utility Facilities
The amounts shown in the table below represent Eastern Energy Gas' share in each jointly owned facility included in property, plant and equipment, net as of December 31, 2023 (dollars in millions):

AccumulatedConstruction
Eastern Energy Gas'Facility in Depreciation andWork-in-
ShareServiceAmortizationProgress
Ellisburg Pool39 %$33 $12 $— 
Ellisburg Station50 29 9 2 
Harrison50 56 19 1 
Leidy50 148 49 2 
Oakford50 216 73 4 
Total$482 $162 $9 
EGTS  
Jointly Owned Utility Plant Interests [Line Items]  
Schedule of Jointly Owned Utility Facilities
The amounts shown in the table below represent EGTS' share in each jointly owned facility included in property, plant and equipment, net as of December 31, 2023 (dollars in millions):

AccumulatedConstruction
EGTS'
Facility in Depreciation andWork-in-
ShareServiceAmortizationProgress
Ellisburg Pool39 %$33 $12 $— 
Ellisburg Station50 29 9 2 
Harrison50 56 19 1 
Leidy50 148 49 2 
Oakford50 216 73 4 
Total$482 $162 $9