XML 51 R41.htm IDEA: XBRL DOCUMENT
v3.21.2

Risk Management Counterparties Representing 10% or More of Assets and Liabilities from price risk management activities (Details) | Sep. 30, 2021 | Dec. 31, 2020
--- | --- | ---
Assets from price risk management activities: |  |
Counterparty A | 13.00% | 12.00%
Counterparty B | 12.00% | 17.00%
Counterparty C | 27.00% | 21.00%
Counterparty D | 8.00% | 16.00%
Fair Value, Concentration of Risk, Trading Account Assets | 0.11 | 0.08
Counterparty F | 0.12 | 0.05
Concentration of Risk, Derivative Instruments, Assets | 83.00% | 79.00%
Counterparty G | 0.69 | 0.93
Counterparty H | 0.11 | 0
Liabilities from price risk management activities: |  |
Counterparty E | 80.00% | 93.00%

X
- Definition Assets from price risk management activities: [Abstract] + References No definition available. + Details
Name: | por_AssetsFromPriceRiskManagementActivitiesAbstract
Namespace Prefix: | por_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents aggregate of individually significant counterparties of total assets arising from derivative instruments from price risk management activities. + References No definition available. + Details
Name: | por_ConcentrationOfRiskDerivativeInstrumentsAssets
Namespace Prefix: | por_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents aggregate of individually significant counterparties of total liabilities arising from derivative instruments from price risk management activities. + References No definition available. + Details
Name: | por_ConcentrationOfRiskDerivativeInstrumentsLiabilities
Namespace Prefix: | por_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Individually significant counterparty of total assets arising from derivative instruments from price risk management activities. + References No definition available. + Details
Name: | por_CounterpartyA
Namespace Prefix: | por_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Individually significant counterparty of total assets arising from derivative instruments from price risk management activities. + References No definition available. + Details
Name: | por_CounterpartyB
Namespace Prefix: | por_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Individually significant counterparty of total assets arising from derivative instruments from price risk management activities. + References No definition available. + Details
Name: | por_CounterpartyC
Namespace Prefix: | por_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Counterparty D + References No definition available. + Details
Name: | por_CounterpartyD
Namespace Prefix: | por_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Counterparty E + References No definition available. + Details
Name: | por_CounterpartyE
Namespace Prefix: | por_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Counterparty F + References No definition available. + Details
Name: | por_CounterpartyF
Namespace Prefix: | por_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Counterparty G + References No definition available. + Details
Name: | por_CounterpartyG
Namespace Prefix: | por_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Counterparty H + References No definition available. + Details
Name: | por_CounterpartyH
Namespace Prefix: | por_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Liabilities from price risk management activities: [Abstract] + References No definition available. + Details
Name: | por_LiabilitiesFromPriceRiskManagementActivitiesAbstract
Namespace Prefix: | por_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration