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Regulatory Assets and Liabilities (Tables)
 12 Months Ended
Dec. 31, 2023
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,
20232022
Earning a Return (1)
Not Earning a ReturnTotalTotal
Regulatory assets:
Price risk management
(2)
$— $206 $206 $1 
Pension and other postretirement plans
(3)
— 104 104 95 
Debt issuance costs 2049— 20 20 21 
Trojan decommissioning activities 2059— 139 139 133 
February 2021 ice storm and damage
(4)
67 — 67 74 
Power cost adjustment mechanism
(5)
16 — 16 28 
2020 Labor Day wildfire
(4)
28 — 28 31 
COVID-19
(6)
14 — 14 22 
Wildfire mitigation
(7)
29 — 29 28 
Other Various58 32 90 94 
Total regulatory assets$212 $501 $713 $527 
Regulatory liabilities:
Asset retirement removal costs
(8)
$1,173 $— $1,173 $1,136 
Deferred income taxes
(9)
177 — 177 194 
Price risk management
(2)
— — — 195 
OtherVarious82 14 96 98 
Total regulatory liabilities$1,432 $14 $1,446 $1,623 

(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 will occur over a 7-year period starting January 1, 2023.
(5)Amortization will occur over a 2-year period starting January 1, 2023.
(6)Amortization will occur over a 2-year period starting April 1, 2023.
(7)Amounts deferred between January 1, 2022 and May 8, 2022 will amortize over a 2-year period beginning October 20, 2023. Amounts deferred between May 9, 2022 and December 31, 2022 will amortize over a 1-year period beginning October 20, 2023. Amounts deferred between January 1, 2023 and December 31, 2023 have not yet been approved for amortization.
(8)Recovery or refund expected over the estimated lives of the underlying assets and treated as a reduction to rate base.
(9)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,
20232022
Earning a Return (1)
Not Earning a ReturnTotalTotal
Regulatory assets:
Price risk management
(2)
$— $206 $206 $1 
Pension and other postretirement plans
(3)
— 104 104 95 
Debt issuance costs 2049— 20 20 21 
Trojan decommissioning activities 2059— 139 139 133 
February 2021 ice storm and damage
(4)
67 — 67 74 
Power cost adjustment mechanism
(5)
16 — 16 28 
2020 Labor Day wildfire
(4)
28 — 28 31 
COVID-19
(6)
14 — 14 22 
Wildfire mitigation
(7)
29 — 29 28 
Other Various58 32 90 94 
Total regulatory assets$212 $501 $713 $527 
Regulatory liabilities:
Asset retirement removal costs
(8)
$1,173 $— $1,173 $1,136 
Deferred income taxes
(9)
177 — 177 194 
Price risk management
(2)
— — — 195 
OtherVarious82 14 96 98 
Total regulatory liabilities$1,432 $14 $1,446 $1,623 

(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 will occur over a 7-year period starting January 1, 2023.
(5)Amortization will occur over a 2-year period starting January 1, 2023.
(6)Amortization will occur over a 2-year period starting April 1, 2023.
(7)Amounts deferred between January 1, 2022 and May 8, 2022 will amortize over a 2-year period beginning October 20, 2023. Amounts deferred between May 9, 2022 and December 31, 2022 will amortize over a 1-year period beginning October 20, 2023. Amounts deferred between January 1, 2023 and December 31, 2023 have not yet been approved for amortization.
(8)Recovery or refund expected over the estimated lives of the underlying assets and treated as a reduction to rate base.
(9)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.