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Leases (Tables)
 12 Months Ended
Dec. 31, 2024
Lessee, Lease, Description [Line Items]  
Schedule of Operating and Finance Lease
The following table summarizes the Company's leases recorded on the Consolidated Balance Sheets as of December 31 (in millions):
20242023
Right-of-use assets:
Operating leases$441 $501 
Finance leases399 399 
Total right-of-use assets$840 $900 
Lease liabilities:
Operating leases$492 $555 
Finance leases412 413 
Total lease liabilities$904 $968 
Schedule of Lease Cost
The following table summarizes the Company's lease costs for the years ended December 31 (in millions):
202420232022
Variable$434 $439$552
Operating128 136136
Finance:
Amortization23 2120
Interest34 3536
Short-term33 4644
Total lease costs$652 $677$788
Weighted-average remaining lease term (years):
Operating leases7.27.47.4
Finance leases25.927.528.1
Weighted-average discount rate:
Operating leases 5.1 %4.5 %4.1 %
Finance leases8.5 %8.6 %8.6 %
Schedule of Operating and Finance Lease, Supplemental Cash Flow
The following table summarizes the Company's supplemental cash flow information relating to leases for the years ended December 31 (in millions):
202420232022
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases$(131)$(138)$(141)
Operating cash flows from finance leases(33)(35)(36)
Financing cash flows from finance leases(29)(27)(25)
Right-of-use assets obtained in exchange for lease liabilities:
Operating leases$61 $71 $131 
Finance leases15 6 3 
Schedule of Lease Maturity
The Company has the following remaining lease commitments as of December 31, 2024 (in millions):
OperatingFinanceTotal
2025$140 $67 $207 
2026116 66 182 
202786 63 149 
202857 57 114 
202938 37 75 
Thereafter147 493 640 
Total undiscounted lease payments584 783 1,367 
Less - amounts representing interest(92)(371)(463)
Lease liabilities$492 $412 $904 
PAC  
Lessee, Lease, Description [Line Items]  
Schedule of Operating and Finance Lease
The following table summarizes PacifiCorp's leases recorded on the Consolidated Balance Sheets as of December 31 (in millions):
20242023
Right-of-use assets:
Operating leases$11 $12 
Finance leases22 10 
Total right-of-use assets$33 $22 
Lease liabilities:
Operating leases$11 $12 
Finance leases24 12 
Total lease liabilities$35 $24 
Schedule of Lease Cost
The following table summarizes PacifiCorp's lease costs for the years ended December 31 (in millions):
202420232022
Variable$35 $57 $61 
Operating4 4 3 
Finance:
Amortization1 1 1 
Interest2 1 1 
Short-term6 6 5 
Total lease costs$48 $69 $71 
Weighted-average remaining lease term (years):
Operating leases12.012.311.4
Finance leases7.38.89.7
Weighted-average discount rate:
Operating leases 3.8 %3.8 %3.9 %
Finance leases7.8 %10.6 %11.4 %
Schedule of Lease Maturity
PacifiCorp has the following remaining lease commitments as of December 31, 2024 (in millions):
OperatingFinanceTotal
2025$2 $5 $7 
20262 5 7 
20272 4 6 
20281 4 5 
20291 4 5 
Thereafter7 10 17 
Total undiscounted lease payments15 32 47 
Less - amounts representing interest(4)(8)(12)
Lease liabilities$11 $24 $35 
NPC  
Lessee, Lease, Description [Line Items]  
Schedule of Operating and Finance Lease
The following table summarizes Nevada Power's leases recorded on the Consolidated Balance Sheet as of December 31 (in millions):
20242023
Right-of-use assets:
Operating leases$5 $7 
Finance leases279 289 
Total right-of-use assets$284 $296 
Lease liabilities:
Operating leases$7 $9 
Finance leases287 298 
Total lease liabilities$294 $307 
Schedule of Lease Cost
The following table summarizes Nevada Power's lease costs for the years ended December 31 (in millions):
202420232022
Variable$270 $264 $369 
Operating2 2 2 
Finance:
Amortization16 15 14 
Interest24 26 27 
Total lease costs$312 $307 $412 
Weighted-average remaining lease term (years):
Operating leases2.83.74.8
Finance leases27.428.229.1
Weighted-average discount rate:
Operating leases 4.5 %4.5 %4.5 %
Finance leases8.6 %8.6 %8.6 %
Schedule of Operating and Finance Lease, Supplemental Cash Flow
The following table summarizes Nevada Power's supplemental cash flow information relating to leases for the years ended December 31 (in millions):
202420232022
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases$(3)$(3)$(3)
Operating cash flows from finance leases(25)(26)(28)
Financing cash flows from finance leases(20)(18)(17)
Right-of-use assets obtained in exchange for lease liabilities:
Operating leases$— $1 $— 
Finance leases9 4 3 
Schedule of Lease Maturity
Nevada Power has the following remaining lease commitments as of December 31, 2024 (in millions):
OperatingFinanceTotal
2025$3 $45 $48 
20263 45 48 
20272 44 46 
2028— 40 40 
2029— 25 25 
Thereafter— 360 360 
Total undiscounted lease payments8 559 567 
Less - amounts representing interest(1)(272)(273)
Lease liabilities$7 $287 $294 
SPPC  
Lessee, Lease, Description [Line Items]  
Schedule of Operating and Finance Lease
The following table summarizes Sierra Pacific's leases recorded on the Consolidated Balance Sheet as of December 31 (in millions):
20242023
Right-of-use assets:
Operating leases$15 $16 
Finance leases99 100 
Total right-of-use assets$114 $116 
Lease liabilities:
Operating leases$15 $15 
Finance leases102 103 
Total lease liabilities$117 $118 
Schedule of Lease Cost
The following table summarizes Sierra Pacific's lease costs for the years ended December 31 (in millions):
202420232022
Variable$100 $99 $103 
Operating2 2 1 
Finance:
Amortization5 5 5 
Interest8 8 8 
Total lease costs$115 $114 $117 
Weighted-average remaining lease term (years):
Operating leases23.824.626.0
Finance leases26.227.628.2
Weighted-average discount rate:
Operating leases 5.0 %5.0 %5.0 %
Finance leases8.4 %8.4 %8.4 %
Schedule of Operating and Finance Lease, Supplemental Cash Flow
The following table summarizes Sierra Pacific's supplemental cash flow information relating to leases for the years ended December 31 (in millions):
202420232022
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases$(2)$(2)$(1)
Operating cash flows from finance leases(8)(8)(9)
Financing cash flows from finance leases(8)(7)(7)
Right-of-use assets obtained in exchange for lease liabilities:
Operating leases$1 $1 1 
Finance leases5 3 1 
Schedule of Lease Maturity
Sierra Pacific has the following remaining lease commitments as of December 31, 2024 (in millions):
OperatingFinanceTotal
2025$1 $17 $18 
20261 16 17 
20271 14 15 
20281 13 14 
20291 9 10 
Thereafter22 124 146 
Total undiscounted lease payments27 193 220 
Less - amounts representing interest(12)(91)(103)
Lease liabilities$15 $102 $117 
EGTS  
Lessee, Lease, Description [Line Items]  
Schedule of Operating and Finance Lease
The following table summarizes EGTS' leases recorded on the Consolidated Balance Sheets as of December 31 (in millions):

20242023
Right-of-use assets:
Operating leases$17 $18 
Total right-of-use assets$17 $18 
Lease liabilities:
Operating leases$16 $17 
Total lease liabilities$16 $17 
Schedule of Lease Cost
The following table summarizes EGTS' operating lease costs for the years ended December 31 (in millions):

202420232022
Total operating lease costs$2 $2 $2 
Weighted-average remaining operating lease term (years)11.712.713.7
Weighted-average operating lease discount rate4.3 %4.3 %4.3 %
Schedule of Operating and Finance Lease, Supplemental Cash Flow
The following table summarizes EGTS' supplemental cash flow information relating to leases for the years ended December 31 (in millions):

202420232022
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases$2 $2 $2 
Schedule of Operating Lease Maturity
EGTS has the following remaining operating lease commitments as of December 31, 2024 (in millions):

2025$2 
20262 
20272 
20282 
20291 
Thereafter11 
Total undiscounted lease payments20 
Less - amounts representing interest(4)
Lease liabilities$16