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Price Risk Management (Tables)
 3 Months Ended
Mar. 31, 2024
Derivative [Line Items]  
Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]
PGE’s Assets and Liabilities from price risk management activities consist of the following (in millions):
March 31, 2024December 31, 2023
Current assets:
Commodity contracts:
Electricity$20 $13 
Natural gas9 9 
Total current derivative assets (1)
29 22 
Noncurrent assets:
Commodity contracts:
Electricity6 9 
Natural gas2 2 
Total noncurrent derivative assets (1)
8 11 
Total derivative assets (2)
$37 $33 
Current liabilities:
Commodity contracts:
Electricity$44 $51 
Natural gas93 113 
Total current derivative liabilities137 164 
Noncurrent liabilities:
Commodity contracts:
Electricity17 22 
Natural gas39 53 
Total noncurrent derivative liabilities56 75 
Total derivative liabilities (2)
$193 $239 
(1) Total current derivative assets are included in Other current assets, and Total noncurrent derivative assets are included in Other noncurrent assets on the condensed consolidated balance sheets.
(2) As of March 31, 2024 and December 31, 2023, no derivative assets or liabilities were designated as hedging instruments.
Schedule of Derivative Instruments [Table Text Block]
PGE’s net volumes related to its Assets and Liabilities from price risk management activities resulting from its derivative transactions, which are expected to deliver or settle at various dates through 2035, were as follows (in millions):
March 31, 2024December 31, 2023
Commodity contracts:
Electricity4 MWhs3 MWhs
Natural gas200 Decatherms213 Decatherms
Foreign currency$22 Canadian$20 Canadian
Derivatives Not Designated as Hedging Instruments [Table Text Block]
Net realized and unrealized losses (gains) on derivative transactions not designated as hedging instruments are classified in Revenues, net or Purchased power and fuel, as applicable, in the condensed consolidated statements of income and comprehensive income and were as follows (in millions):
Three Months Ended March 31,
20242023
Commodity contracts:
Electricity$(19)$(35)
Natural Gas14 132 
Net unrealized and certain net realized losses/(gains) presented in the table above are offset within the condensed consolidated statements of income and comprehensive income by the effects of regulatory accounting.
Schedule of Risk Derivatives [Table Text Block]
Assuming no changes in market prices and interest rates, the following table indicates the year in which the net unrealized loss/(gain) recorded as of March 31, 2024 related to PGE’s derivative activities would become realized as a result of the settlement of the underlying derivative instrument (in millions):
20242025202620272028ThereafterTotal
Commodity contracts:
Electricity$17 $19 $(1)$(1)$— $1 $35 
Natural gas76 29 15 1 — — 121 
Net unrealized loss/(gain)$93 $48 $14 $— $— $1 $156