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Employee Benefits (Tables)
 12 Months Ended
Dec. 31, 2024
Employee Benefits [Abstract]  
Assets and Liabilities associated with Non Qualified Benefit Plans [Table Text Block]
Trust assets and plan liabilities related to the NQBP included in PGE’s consolidated balance sheets are as follows as of December 31 (in millions):
 20242023
  NQBPOther NQBPTotalNQBPOther NQBPTotal
Non-qualified benefit plan trust assets$16 $18 $34 $17 $18 $35 
Non-qualified benefit plan liabilities *14 60 74 16 63 79 
*    For the NQBP, excludes the current portion of $2 million in 2024 and in 2023, which are classified in Accrued expenses and other current liabilities in the consolidated balance sheets.
Schedule of Allocation of Plan Assets [Table Text Block]
The asset allocations for the plans, and the target allocation, are as follows:
 As of December 31,
  20242023
ActualTarget *ActualTarget *
Defined Benefit Pension Plan:
Growth securities
53 %55 %53 %55 %
Liability Hedging Fixed Income securities
47 45 47 45 
Total100 %100 %100 %100 %
Other Postretirement Benefit Plans:
Equity securities40 %38 %41 %39 %
Debt securities60 62 59 61 
Total100 %100 %100 %100 %
Non-Qualified Benefits Plans:
Equity securities1 %2 %1 %4 %
Debt securities6 5 13 10 
Insurance contracts93 93 86 86 
Total100 %100 %100 %100 %
*    The target for the Defined Benefit Pension Plan represents the mid-point of the investment target range. Due to the nature of the investment vehicles in both the Other Postretirement Benefit Plans and the NQBP, these targets are the weighted average of the mid-point of the respective investment target ranges approved by the Investment Committee. Due to the method used to calculate the weighted average targets for the Other Postretirement Benefit Plans and NQBP, reported percentages are affected by the fair market values of the investments within the pools.
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
The Company’s financial assets and liabilities whose values were recognized at fair value are as follows by level within the fair value hierarchy (in millions): 
December 31, 2024
Level 1Level 2Level 3
Other(2)
Total
Assets:
Cash equivalents$12 $— $— $— $12 
Nuclear decommissioning trust: (1)
Debt securities:
Domestic government10 6 — — 16 
Corporate credit— 7 — — 7 
Money market funds measured at NAV (2)
— — — 7 7 
Non-qualified benefit plan trust: (3)
Debt securities—domestic government2 — — — 2 
Paid Leave Oregon Trust:
Money market funds measured at NAV (2)
— — — 4 4 
Price risk management activities: (1) (4)
Electricity— 18 1 — 19 
Natural gas— 15 — — 15 
$24 $46 $1 $11 $82 
Liabilities:
Price risk management activities: (1) (4)
Electricity$— $25 $31 $— $56 
Natural gas— 159 4 — 163 
$— $184 $35 $— $219 
(1)Activities are subject to regulation, with certain gains and losses deferred pursuant to regulatory accounting and included in regulatory assets or regulatory liabilities as appropriate.
(2)Assets are measured at NAV as a practical expedient and not subject to hierarchy level classification disclosure.
(3)Excludes insurance policies of $32 million, which are recorded at cash surrender value.
(4)For further information regarding price risk management derivatives, see Note 6, Risk Management.
December 31, 2023
Level 1Level 2Level 3
Other(2)
Total
Assets:
Cash equivalents$— $— $— $— $— 
Nuclear decommissioning trust: (1)
Debt securities:
Domestic government9 9 — — 18 
Corporate credit— 7 — — 7 
Money market funds measured at NAV (2)
— — — 6 6 
Non-qualified benefit plan trust: (3)
Money market funds2 — — — 2 
Debt securities—domestic government3 — — — 3 
Paid Leave Oregon Trust:
Money market funds measured at NAV (2)
— — — 3 $3 
Price risk management activities: (1) (4)
Electricity— 8 14 — 22 
Natural gas— 11 — — 11 
$14 $35 $14 $9 $72 
Liabilities:
Price risk management activities: (1) (4)
Electricity$— $30 $43 $— $73 
Natural gas— 150 16 — 166 
$— $180 $59 $— $239 
(1)Activities are subject to regulation, with certain gains and losses deferred pursuant to regulatory accounting and included in regulatory assets or regulatory liabilities as appropriate.
(2)Assets are measured at NAV as a practical expedient and not subject to hierarchy level classification disclosure.
(3)Excludes insurance policies of $30 million, which are recorded at cash surrender value.
(4)For further information regarding price risk management derivatives, see Note 6, Risk Management.
The fair values of the Company’s pension plan assets and other postretirement benefit plan assets by asset category are as follows (in millions):
 Level 1Level 2Level 3Other *Total
As of December 31, 2024:
Defined Benefit Pension Plan assets:
Equity securities—Domestic$13 $— $— $— $13 
Investments measured at NAV:
Money market funds— — — 30 30 
Collective trust funds— — — 440 440 
Private equity funds— — — 1 1 
$13 $— $— $471 $484 
Other Postretirement Benefit Plans assets:
Equity securities:
Domestic— 2 — — 2 
International4 — — — 4 
Debt securities—Domestic— 4 — — 4 
Investments measured at NAV:
Money market funds— — — 11 11 
Collective trust funds— — — 4 4 
$4 $6 $— $15 $25 
As of December 31, 2023:
Defined Benefit Pension Plan assets:
Equity securities—Domestic$14 $— $— $— $14 
Investments measured at NAV:
Money market funds— — — 30 30 
Collective trust funds— — — 484 484 
Private equity funds— — — 2 2 
$14 $— $— $516 $530 
Other Postretirement Benefit Plans assets:
Money market funds$3 $— $— $— $3 
Equity securities:
Domestic— 2 — — 2 
International4 — — — 4 
Debt securities—Domestic government— 4 — — 4 
Investments measured at NAV:
Money market funds— — — 6 6 
Collective trust funds— — — 4 4 
$7 $6 $— $10 $23 
*Assets are measured at NAV as a practical expedient and not subject to hierarchy level classification disclosure. These assets are listed in the totals of the fair value hierarchy to permit the reconciliation to amounts presented in the financial statements.
Schedule of Defined Benefit Plans Disclosures [Table Text Block]
The following tables provide certain information with respect to the Company’s defined benefit pension plan, other postretirement benefits, and NQBP as of and for the years ended December 31, 2024 and 2023. Information related to the Other NQBP is not included in the following tables (in millions):
 Defined Benefit Pension PlanOther Postretirement BenefitsNon-Qualified
Benefit Plans
  202420232024202320242023
Benefit obligation:
As of January 1$690 $695 $35 $43 $18 $18 
Service cost10 10 1 1 — — 
Interest cost33 37 2 2 — 1 
Actuarial (gain) loss
(40)37 1 3 — 2 
Benefits paid from plan assets
(78)(86)(3)(2)(2)(3)
Benefits paid from Company assets
— — — (1)— — 
Administrative expenses(3)(3)— — — — 
Plan settlements— — — (11)— — 
Special/contractual termination benefits
— — 1 — — — 
As of December 31$612 $690 $37 $35 $16 $18 
Fair value of plan assets:
As of January 1$530 $547 $23 $21 $17 $19 
Actual return on plan assets19 72 2 2 (1)(2)
Company contributions16 — 3 13 2 3 
Benefit payments(78)(86)(3)(2)(2)(3)
Administrative expenses(3)(3)— — — — 
Plan settlements— — — (11)— — 
As of December 31$484 $530 $25 $23 $16 $17 
Unfunded position as of December 31$(128)$(160)$(12)$(12)$— $(1)
Accumulated benefit plan obligation as of December 31$574 $645 N/AN/A$16 $17 
Classification in consolidated balance sheet:
Noncurrent asset$— $— $— $— $16 $17 
Current liability— — (1)— (2)(2)
Noncurrent liability(128)(160)(11)(12)(14)(16)
Net asset (liability)$(128)$(160)$(12)$(12)$— $(1)
Amounts included in comprehensive income:
Net actuarial loss (gain)$(20)$8 $— $2 $— $2 
Net settlement gain (loss)
— — — 1 — — 
Amortization of net actuarial gain (loss)
— — — 1 (1)(1)
Amortization of prior service credit— 1 — — — — 
$(20)$9 $— $4 $(1)$1 
Amounts included in AOCL: *
Net actuarial loss (gain)$85 $105 $(3)$(3)$6 $7 
Prior service cost(1)(1)— — — — 
$84 $104 $(3)$(3)$6 $7 
* Amounts included in AOCL related to the Company’s defined benefit pension plan and other postretirement benefits are classified as Regulatory assets or liabilities as future recoverability is expected from retail customers.

Significant actuarial gains (losses) experienced that resulted in changes in projected benefit obligation included the following:
•For the defined benefit pension plan, actuarial gains and losses due to demographic experience, including assumption changes, were a gain of $40 million and a loss of $37 million, primarily due to changes in the discount rate, and the changes between actual and expected return on plan assets were a loss of $20 million and a gain of $29 million, for the years ended December 31, 2024 and 2023, respectively.
•For the other postretirement benefits, actuarial gains and losses due to demographic experience, including assumption changes, were a loss of $1 million and a loss of $3 million, and the changes between actual and expected return on plan assets were a gain of $1 million and a gain of $1 million, for the years ended December 31, 2024 and 2023, respectively.
Schedule of Net Benefit Costs [Table Text Block]
Net periodic benefit cost consists of the following for the years ended December 31 (in millions):

 Defined Benefit
Pension Plan		Other Postretirement
Benefits		Non-Qualified
Benefit Plans
  202420232022202420232022202420232022
Service cost$10 $10 $17 $1 $1 $1 $— $— $— 
Interest cost on benefit obligation33 37 28 2 2 2 — 1 1 
Expected return on plan assets(39)(43)(46)(1)(1)(2)— — — 
Amortization of prior service credit— (1)(2)— — — — — — 
Amortization of net actuarial loss (gain)
— — 15 — (1)— 1 1 1 
Settlement gain— — — — (1)(11)— — — 
Net periodic benefit cost$4 $3 $12 $2 $— $(10)$1 $2 $2 
Employee Benefits Assumptions [Table]
The following assumptions were used in determining benefit obligations and net period benefit costs:
Defined Benefit Pension PlanOther Postretirement BenefitsNon-Qualified
Benefit Plans
202420232024202320242023
Assumptions used to determine benefit obligations: 
Discount rate5.70 %5.13 %5.59% -
–
5.18% -5.70 %5.13 %
6.11 %5.57 %
Rate of compensation increase4.08 %4.19 %4.02 %4.06 %3.98 %4.01 %
Assumptions used to determine net periodic benefit cost:
Discount rate5.13 %5.42 %5.18% -5.47% -5.13 %5.42 %
5.57 %6.06 %
Rate of compensation increase 4.19 %4.21 %4.06 %4.04 %4.01 %5.10 %
Long-term rate of return on plan assets6.88 %6.75 %4.73 %4.77 %N/AN/A
Schedule of Expected Benefit Payments [Table Text Block]
The following table summarizes the benefits expected to be paid to participants in each of the next five years and in the aggregate for the five years thereafter (in millions):
 Payments Due
  20252026202720282029
2030 - 2034
Defined benefit pension plan$73 $45 $45 $45 $45 $225 
Other postretirement benefits4 4 4 4 4 11 
Non-qualified benefit plans2 2 2 2 2 8 
Total$79 $51 $51 $51 $51 $244