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Regulatory Assets and Liabilities (Tables)
 12 Months Ended
Dec. 31, 2024
Regulatory Assets [Line Items]  
Schedule of Regulatory Assets [Table Text Block]
Regulatory assets and liabilities consist of the following (dollars in millions):
Remaining Amortization PeriodAs of December 31,
20242023
Earning a Return (1)
Not Earning a ReturnTotalTotal
Regulatory assets:
Price risk management
(2)
$— $185 $185 $206 
Pension plans
(3)
— 84 84 104 
Trojan decommissioning activities 2059— 161 161 139 
February 2021 ice storm and damage
2029
58 — 58 67 
January 2024 storm and damage
(4)
46 — 46 — 
Reliability contingency events
(4)
90 — 90 — 
2020 Labor Day wildfire
2029
24 — 24 28 
Wildfire mitigation
(5)
43 — 43 29 
Other Various70 76 146 140 
Total regulatory assets$331 $506 $837 $713 
Regulatory liabilities:
Asset retirement removal costs
(6)
$1,199 $— $1,199 $1,173 
Deferred income taxes
(7)
179 — 179 177 
Clearwater RAC
(4)
40 — 40 — 
OtherVarious62 13 75 96 
Total regulatory liabilities$1,480 $13 $1,493 $1,446 
(1)Earning a return includes either interest on the regulatory asset or liability, or inclusion of the regulatory asset or liability as an increase or decrease to rate base at the allowed rate of return.
(2)No amortization period in accordance with ratemaking and cost recovery processes authorized by the OPUC, PGE recognizes a regulatory asset or liability to defer unrealized losses or gains on derivative instruments until settlement.
(3)Recovery expected over the average service life of employees.
(4)Amortization period has yet to be decided.
(5)Amounts deferred between January 1, 2022 and May 8, 2022 are amortizing over a 2-year period beginning October 20, 2023. Incremental amounts deferred between January 1, 2023 and December 31, 2024 have not yet been approved for amortization.
(6)Recovery or refund expected over the estimated lives of the underlying assets and treated as a reduction to rate base.
(7)Refund expected as the balance is reversed using the average rate assumption method over the average life of the underlying assets and treated as a reduction to rate base.
Schedule of Regulatory Liabilities [Table Text Block]
Regulatory assets and liabilities consist of the following (dollars in millions):
Remaining Amortization PeriodAs of December 31,
20242023
Earning a Return (1)
Not Earning a ReturnTotalTotal
Regulatory assets:
Price risk management
(2)
$— $185 $185 $206 
Pension plans
(3)
— 84 84 104 
Trojan decommissioning activities 2059— 161 161 139 
February 2021 ice storm and damage
2029
58 — 58 67 
January 2024 storm and damage
(4)
46 — 46 — 
Reliability contingency events
(4)
90 — 90 — 
2020 Labor Day wildfire
2029
24 — 24 28 
Wildfire mitigation
(5)
43 — 43 29 
Other Various70 76 146 140 
Total regulatory assets$331 $506 $837 $713 
Regulatory liabilities:
Asset retirement removal costs
(6)
$1,199 $— $1,199 $1,173 
Deferred income taxes
(7)
179 — 179 177 
Clearwater RAC
(4)
40 — 40 — 
OtherVarious62 13 75 96 
Total regulatory liabilities$1,480 $13 $1,493 $1,446 
(1)Earning a return includes either interest on the regulatory asset or liability, or inclusion of the regulatory asset or liability as an increase or decrease to rate base at the allowed rate of return.
(2)No amortization period in accordance with ratemaking and cost recovery processes authorized by the OPUC, PGE recognizes a regulatory asset or liability to defer unrealized losses or gains on derivative instruments until settlement.
(3)Recovery expected over the average service life of employees.
(4)Amortization period has yet to be decided.
(5)Amounts deferred between January 1, 2022 and May 8, 2022 are amortizing over a 2-year period beginning October 20, 2023. Incremental amounts deferred between January 1, 2023 and December 31, 2024 have not yet been approved for amortization.
(6)Recovery or refund expected over the estimated lives of the underlying assets and treated as a reduction to rate base.
(7)Refund expected as the balance is reversed using the average rate assumption method over the average life of the underlying assets and treated as a reduction to rate base.