$POR
Portland General Electric Co Stock $por

$por Overview Financials Valuation SEC Filings Company Website

2023 Q1 Form 10-K Financial Statement

#000078497723000005 Filed on February 16, 2023

Income Statement

Concept	2023 Q1	2022 Q4	2022
Revenue	$748.0M	$687.0M	$2.647B
YoY Change	19.49%	12.99%	10.48%
Cost Of Revenue	$397.0M	$371.0M	$1.336B
YoY Change	35.96%	31.1%	18.02%
Gross Profit	$351.0M	$316.0M	$1.311B
YoY Change	5.09%	-2.77%	3.72%
Gross Profit Margin	46.93%	46.0%	49.53%
Selling, General & Admin	$80.00M	$83.00M	$340.0M
YoY Change	-10.11%	-6.74%	1.19%
% of Gross Profit	22.79%	26.27%	25.93%
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$111.0M	$107.0M	$417.0M
YoY Change	12.12%	8.08%	3.22%
% of Gross Profit	31.62%	33.86%	31.81%
Operating Expenses	$234.0M	$229.0M	$914.0M
YoY Change	2.63%	2.23%	3.16%
Operating Profit	$117.0M	$87.00M	$397.0M
YoY Change	10.38%	-13.86%	5.03%
Interest Expense	$44.00M	-$37.00M	$156.0M
YoY Change	15.79%	12.12%	13.87%
% of Operating Profit	37.61%	-42.53%	39.29%
Other Income/Expense, Net	$15.00M	$4.000M	$31.00M
YoY Change	400.0%	33.33%	19.23%
Pretax Income	$88.00M	$54.00M	$272.0M
YoY Change	23.94%	-23.94%	1.87%
Income Tax	$14.00M	$3.000M	$39.00M
% Of Pretax Income	15.91%	5.56%	14.34%
Net Earnings	$74.00M	$51.00M	$233.0M
YoY Change	23.33%	-22.73%	-4.51%
Net Earnings / Revenue	9.89%	7.42%	8.8%
Basic Earnings Per Share	$0.81		$2.61
Diluted Earnings Per Share	$0.80	$0.57	$2.60
COMMON SHARES
Basic Shares Outstanding	89.31M shares	89.27M shares	89.29M shares
Diluted Shares Outstanding	92.57M shares		89.64M shares

Balance Sheet

Concept	2023 Q1	2022 Q4	2022
SHORT-TERM ASSETS
Cash & Short-Term Investments	$42.00M	$281.0M	$281.0M
YoY Change	-66.13%	215.73%	215.73%
Cash & Equivalents	$12.00M	$165.0M	$165.0M
Short-Term Investments	$30.00M	$116.0M	$116.0M
Other Short-Term Assets	$232.0M	$498.0M	$436.0M
YoY Change	-37.47%	142.93%	127.08%
Inventory	$95.00M	$95.00M	$95.00M
Prepaid Expenses		$69.00M
Receivables	$362.0M	$398.0M	$398.0M
Other Receivables	$0.00	$0.00	$0.00
Total Short-Term Assets	$766.0M	$1.210B	$1.210B
YoY Change	-12.56%	75.87%	75.87%
LONG-TERM ASSETS
Property, Plant & Equipment	$8.611B	$8.465B	$7.680B
YoY Change	6.81%	5.75%	6.14%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$217.0M	$234.0M	$762.0M
YoY Change	4.33%	32.95%	-1.8%
Total Long-Term Assets	$9.385B	$9.249B	$9.249B
YoY Change	6.08%	5.03%	5.03%
TOTAL ASSETS
Total Short-Term Assets	$766.0M	$1.210B	$1.210B
Total Long-Term Assets	$9.385B	$9.249B	$9.249B
Total Assets	$10.15B	$10.46B	$10.46B
YoY Change	4.4%	10.16%	10.16%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$242.0M	$457.0M	$457.0M
YoY Change	43.2%	87.3%	87.3%
Accrued Expenses	$203.0M	$336.0M	$336.0M
YoY Change	-42.33%	26.79%	26.79%
Deferred Revenue
YoY Change
Short-Term Debt	$68.00M	$0.00	$0.00
YoY Change
Long-Term Debt Due	$0.00	$260.0M	$280.0M
YoY Change	-100.0%		1300.0%
Total Short-Term Liabilities	$751.0M	$1.496B	$1.496B
YoY Change	-19.33%	94.79%	94.79%
LONG-TERM LIABILITIES
Long-Term Debt	$3.485B	$3.386B	$3.680B
YoY Change	6.06%	3.07%	3.43%
Other Long-Term Liabilities	$94.00M	$91.00M	$2.065B
YoY Change	13.25%	54.24%	0.83%
Total Long-Term Liabilities	$3.579B	$3.477B	$5.745B
YoY Change	6.23%	3.98%	2.48%
TOTAL LIABILITIES
Total Short-Term Liabilities	$751.0M	$1.496B	$1.496B
Total Long-Term Liabilities	$3.579B	$3.477B	$5.745B
Total Liabilities	$7.039B	$7.680B	$7.680B
YoY Change	0.36%	13.16%	13.16%
SHAREHOLDERS EQUITY
Retained Earnings	$1.568B	$1.534B
YoY Change	5.73%	3.93%
Common Stock	$1.548B	$1.249B
YoY Change	25.24%	0.64%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$3.112B	$2.779B	$2.779B
YoY Change
Total Liabilities & Shareholders Equity	$10.15B	$10.46B	$10.46B
YoY Change	4.4%	10.16%	10.16%

Cashflow Statement

Concept	2023 Q1	2022 Q4	2022
OPERATING ACTIVITIES
Net Income	$74.00M	$51.00M	$233.0M
YoY Change	23.33%	-22.73%	-4.51%
Depreciation, Depletion And Amortization	$111.0M	$107.0M	$417.0M
YoY Change	12.12%	8.08%	3.22%
Cash From Operating Activities	-$39.00M	$100.0M	$674.0M
YoY Change	-115.66%	-300.0%	26.69%
INVESTING ACTIVITIES
Capital Expenditures	$274.0M	$225.0M	$766.0M
YoY Change	64.07%	-250.0%	20.44%
Acquisitions
YoY Change
Other Investing Activities	$4.000M	-$5.000M	$5.000M
YoY Change	-500.0%	25.0%	-80.77%
Cash From Investing Activities	-$276.0M	-$230.0M	-$758.0M
YoY Change	79.22%	49.35%	15.55%
FINANCING ACTIVITIES
Cash Dividend Paid	$40.00M		$158.0M
YoY Change	5.26%		5.33%
Common Stock Issuance & Retirement, Net			$18.00M
YoY Change			50.0%
Debt Paid & Issued, Net	$260.0M		$0.00
YoY Change			-100.0%
Cash From Financing Activities	$162.0M	277.0M	$197.0M
YoY Change	-537.84%	-828.95%	-343.21%
NET CHANGE
Cash From Operating Activities	-$39.00M	100.0M	$674.0M
Cash From Investing Activities	-$276.0M	-230.0M	-$758.0M
Cash From Financing Activities	$162.0M	277.0M	$197.0M
Net Change In Cash	-$153.0M	147.0M	$113.0M
YoY Change	-363.79%	-160.74%	-155.12%
FREE CASH FLOW
Cash From Operating Activities	-$39.00M	$100.0M	$674.0M
Capital Expenditures	$274.0M	$225.0M	$766.0M
Free Cash Flow	-$313.0M	-$125.0M	-$92.00M
YoY Change	-481.71%	-225.0%	-11.54%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2022	dei	Entity Central Index Key EntityCentralIndexKey	0000784977
CY2022	dei	City Area Code CityAreaCode	503
CY2022	dei	Local Phone Number LocalPhoneNumber	464-8000
CY2022	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	97204
CY2022	dei	Amendment Flag AmendmentFlag	false
CY2022	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2022
CY2022	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2022	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2022Q4	us-gaap	Operating Lease Liability Current Statement Of Financial Position Extensible List OperatingLeaseLiabilityCurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#AccountsPayableAndAccruedLiabilitiesCurrent
CY2022Q4	us-gaap	Operating Lease Liability Noncurrent Statement Of Financial Position Extensible List OperatingLeaseLiabilityNoncurrentStatementOfFinancialPositionExtensibleList	http://fasb.org/us-gaap/2022#OtherLiabilitiesNoncurrent
CY2022	dei	Document Type DocumentType	10-K
CY2022	dei	Document Annual Report DocumentAnnualReport	true
CY2022	dei	Document Period End Date DocumentPeriodEndDate	2022-12-31
CY2022	dei	Document Transition Report DocumentTransitionReport	false
CY2022	dei	Entity File Number EntityFileNumber	001-05532-99
CY2022	dei	Entity Registrant Name EntityRegistrantName	PORTLAND GENERAL ELECTRIC COMPANY
CY2022	dei	Entity Incorporation State Country Code EntityIncorporationStateCountryCode	OR
CY2022	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	93-0256820
CY2022	dei	Entity Address Address Line1 EntityAddressAddressLine1	121 S.W. Salmon Street
CY2022	dei	Entity Address City Or Town EntityAddressCityOrTown	Portland
CY2022	dei	Entity Address State Or Province EntityAddressStateOrProvince	OR
CY2022	dei	Auditor Firm AuditorFirmId	34
CY2022	dei	Auditor Name AuditorName	Deloitte & Touche LLP
CY2022	dei	Security12b Title Security12bTitle	Common Stock, no par value
CY2022	dei	Trading Symbol TradingSymbol	POR
CY2022	dei	Security Exchange Name SecurityExchangeName	NYSE
CY2022	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	Yes
CY2022	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2022	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2022	dei	Entity Interactive Data Current EntityInteractiveDataCurrent	Yes
CY2022	dei	Entity Filer Category EntityFilerCategory	Large Accelerated Filer
CY2022	dei	Entity Small Business EntitySmallBusiness	false
CY2022	dei	Entity Emerging Growth Company EntityEmergingGrowthCompany	false
CY2022	dei	Icfr Auditor Attestation Flag IcfrAuditorAttestationFlag	true
CY2022	dei	Entity Shell Company EntityShellCompany	false
CY2022Q2	dei	Entity Public Float EntityPublicFloat	4297974093	usd
CY2023Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	89312765	shares
CY2022Q4	dei	Entity Number Of Employees EntityNumberOfEmployees	2873	shares
CY2022Q4	por	Number Of Union Employees NumberOfUnionEmployees	673	shares
CY2022Q4	por	Number Of Union Employees Subject To Agreement A NumberOfUnionEmployeesSubjectToAgreementA	610	shares
CY2022Q4	por	Number Of Union Employees Subject To Agreement B NumberOfUnionEmployeesSubjectToAgreementB	63	shares
CY2022	dei	Auditor Location AuditorLocation	Portland, Oregon
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CY2022	us-gaap	Proceeds From Issuance Of Long Term Debt ProceedsFromIssuanceOfLongTermDebt	360000000	usd
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CY2022	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	113000000	usd
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-205000000	usd
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	227000000	usd
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CY2021Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	52000000	usd
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CY2022	us-gaap	Interest Paid Net InterestPaidNet	128000000	usd
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CY2021Q4	us-gaap	Margin Deposit Assets MarginDepositAssets	37000000	usd
CY2021Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	18000000	usd
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Rate PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate	0.065
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Rate PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate	0.067
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Rate PublicUtilitiesAllowanceForFundsUsedDuringConstructionRate	0.069
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	7000000	usd
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	8000000	usd
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Interest PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedInterest	8000000	usd
CY2022	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	14000000	usd
CY2021	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	17000000	usd
CY2020	us-gaap	Public Utilities Allowance For Funds Used During Construction Capitalized Cost Of Equity PublicUtilitiesAllowanceForFundsUsedDuringConstructionCapitalizedCostOfEquity	16000000	usd
CY2022	por	Depreciation Expense Rate DepreciationExpenseRate	0.034
CY2021	por	Depreciation Expense Rate DepreciationExpenseRate	0.034
CY2020	por	Depreciation Expense Rate DepreciationExpenseRate	0.035
CY2022	por	Estimatedaverageservicelifehydroproductionplant Estimatedaverageservicelifehydroproductionplant	P97Y
CY2022	por	Estimatedaverageservicelifewindproductionplant Estimatedaverageservicelifewindproductionplant	P30Y
CY2022	us-gaap	Public Utilities Property Plant And Equipment Transmission Useful Life PublicUtilitiesPropertyPlantAndEquipmentTransmissionUsefulLife	P61Y
CY2022	us-gaap	Public Utilities Property Plant And Equipment Distribution Useful Life PublicUtilitiesPropertyPlantAndEquipmentDistributionUsefulLife	P51Y
CY2022	us-gaap	Public Utilities Property Plant And Equipment Common Useful Life PublicUtilitiesPropertyPlantAndEquipmentCommonUsefulLife	P16Y
CY2022Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	499000000	usd
CY2021Q4	us-gaap	Finite Lived Intangible Assets Accumulated Amortization FiniteLivedIntangibleAssetsAccumulatedAmortization	446000000	usd
CY2022	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	58000000	usd
CY2021	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	58000000	usd
CY2020	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	64000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Next Twelve Months FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths	54000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	49000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	37000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	28000000	usd
CY2022Q4	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	23000000	usd
CY2022	por	Power Cost Deadband Lower Threshold PowerCostDeadbandLowerThreshold	15000000	usd
CY2022	por	Power Cost Deadband Upper Threshold PowerCostDeadbandUpperThreshold	30000000	usd
CY2021	us-gaap	Public Utilities Approved Return On Equity Percentage PublicUtilitiesApprovedReturnOnEquityPercentage	0.095
CY2022	us-gaap	Public Utilities Approved Return On Equity Percentage PublicUtilitiesApprovedReturnOnEquityPercentage	0.095
CY2022	us-gaap	Deferred Purchased Power Costs DeferredPurchasedPowerCosts	23000000	usd
CY2021	us-gaap	Deferred Purchased Power Costs DeferredPurchasedPowerCosts	62000000	usd
CY2022	us-gaap	Excise Taxes Collected ExciseTaxesCollected	53000000	usd
CY2021	us-gaap	Excise Taxes Collected ExciseTaxesCollected	48000000	usd
CY2020	us-gaap	Excise Taxes Collected ExciseTaxesCollected	46000000	usd
CY2022	us-gaap	Regulated Operating Revenue Electric Non Nuclear RegulatedOperatingRevenueElectricNonNuclear	2205000000	usd
CY2021	us-gaap	Regulated Operating Revenue Electric Non Nuclear RegulatedOperatingRevenueElectricNonNuclear	2105000000	usd
CY2020	us-gaap	Regulated Operating Revenue Electric Non Nuclear RegulatedOperatingRevenueElectricNonNuclear	1910000000	usd
CY2022	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Change In Estimate Of Transaction Price ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice	11000000	usd
CY2021	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Change In Estimate Of Transaction Price ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice	-29000000	usd
CY2020	us-gaap	Contract With Customer Liability Cumulative Catch Up Adjustment To Revenue Change In Estimate Of Transaction Price ContractWithCustomerLiabilityCumulativeCatchUpAdjustmentToRevenueChangeInEstimateOfTransactionPrice	-6000000	usd
CY2022	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	7000000	usd
CY2021	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	2000000	usd
CY2020	us-gaap	Deferred Revenue Revenue Recognized1 DeferredRevenueRevenueRecognized1	28000000	usd
CY2022	us-gaap	Regulated Operating Revenue RegulatedOperatingRevenue	2223000000	usd
CY2021	us-gaap	Regulated Operating Revenue RegulatedOperatingRevenue	2078000000	usd
CY2020	us-gaap	Regulated Operating Revenue RegulatedOperatingRevenue	1932000000	usd
CY2022	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	363000000	usd
CY2021	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	255000000	usd
CY2020	us-gaap	Unregulated Operating Revenue UnregulatedOperatingRevenue	162000000	usd
CY2022	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	61000000	usd
CY2021	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	63000000	usd
CY2020	us-gaap	Regulated And Unregulated Operating Revenue RegulatedAndUnregulatedOperatingRevenue	51000000	usd
CY2022	us-gaap	Revenues Revenues	2647000000	usd
CY2021	us-gaap	Revenues Revenues	2396000000	usd
CY2020	us-gaap	Revenues Revenues	2145000000	usd
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	24000000	usd
CY2022	us-gaap	Gain On Derivative Instruments Pretax GainOnDerivativeInstrumentsPretax	133000000	usd
CY2021	us-gaap	Gain On Derivative Instruments Pretax GainOnDerivativeInstrumentsPretax	63000000	usd
CY2020	us-gaap	Gain On Derivative Instruments Pretax GainOnDerivativeInstrumentsPretax	65000000	usd
CY2022Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	131000000	usd
CY2021Q4	us-gaap	Unbilled Receivables Current UnbilledReceivablesCurrent	117000000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	12000000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	26000000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	26000000	usd
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	16000000	usd
CY2019Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	5000000	usd
CY2022	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	2000000	usd
CY2021	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	35000000	usd
CY2020	us-gaap	Provision For Doubtful Accounts ProvisionForDoubtfulAccounts	15000000	usd
CY2022	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	12000000	usd
CY2021	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	25000000	usd
CY2020	us-gaap	Allowance For Doubtful Accounts Receivable Write Offs AllowanceForDoubtfulAccountsReceivableWriteOffs	4000000	usd
CY2022Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	12000000	usd
CY2021Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	26000000	usd
CY2020Q4	us-gaap	Allowance For Doubtful Accounts Receivable Current AllowanceForDoubtfulAccountsReceivableCurrent	16000000	usd
CY2022Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	69000000	usd
CY2021Q4	us-gaap	Prepaid Expense Current PrepaidExpenseCurrent	66000000	usd
CY2022Q4	us-gaap	Margin Deposit Assets MarginDepositAssets	116000000	usd
CY2021Q4	us-gaap	Margin Deposit Assets MarginDepositAssets	37000000	usd
CY2022Q4	por	Regulatory Assets From Price Risk Management Activities RegulatoryAssetsFromPriceRiskManagementActivities	313000000	usd
CY2021Q4	por	Regulatory Assets From Price Risk Management Activities RegulatoryAssetsFromPriceRiskManagementActivities	102000000	usd
CY2022Q4	us-gaap	Other Assets Current OtherAssetsCurrent	498000000	usd
CY2021Q4	us-gaap	Other Assets Current OtherAssetsCurrent	205000000	usd
CY2022Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	234000000	usd
CY2021Q4	us-gaap	Regulatory Liability Current RegulatoryLiabilityCurrent	106000000	usd
CY2022Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	66000000	usd
CY2021Q4	us-gaap	Employee Related Liabilities Current EmployeeRelatedLiabilitiesCurrent	67000000	usd
CY2022Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	42000000	usd
CY2021Q4	us-gaap	Dividends Payable Current DividendsPayableCurrent	40000000	usd
CY2022Q4	us-gaap	Interest Payable Current InterestPayableCurrent	31000000	usd
CY2021Q4	us-gaap	Interest Payable Current InterestPayableCurrent	29000000	usd
CY2022Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	29000000	usd
CY2021Q4	us-gaap	Taxes Payable Current TaxesPayableCurrent	46000000	usd
CY2022Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	140000000	usd
CY2021Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	58000000	usd
CY2022Q4	por	Other Current Liabilities Other OtherCurrentLiabilitiesOther	99000000	usd
CY2021Q4	por	Other Current Liabilities Other OtherCurrentLiabilitiesOther	111000000	usd
CY2022Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	641000000	usd
CY2021Q4	us-gaap	Other Liabilities Current OtherLiabilitiesCurrent	457000000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Generation Or Processing PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing	4709000000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Generation Or Processing PublicUtilitiesPropertyPlantAndEquipmentGenerationOrProcessing	4649000000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Transmission PublicUtilitiesPropertyPlantAndEquipmentTransmission	1119000000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Transmission PublicUtilitiesPropertyPlantAndEquipmentTransmission	1012000000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Distribution PublicUtilitiesPropertyPlantAndEquipmentDistribution	4813000000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Distribution PublicUtilitiesPropertyPlantAndEquipmentDistribution	4469000000	usd
CY2022Q4	por	Public Utilities Property Plant And Equipment General PublicUtilitiesPropertyPlantAndEquipmentGeneral	973000000	usd
CY2021Q4	por	Public Utilities Property Plant And Equipment General PublicUtilitiesPropertyPlantAndEquipmentGeneral	914000000	usd
CY2022Q4	por	Public Utilities Property Plant And Equipment Intangible PublicUtilitiesPropertyPlantAndEquipmentIntangible	807000000	usd
CY2021Q4	por	Public Utilities Property Plant And Equipment Intangible PublicUtilitiesPropertyPlantAndEquipmentIntangible	794000000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	12421000000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Plant In Service PublicUtilitiesPropertyPlantAndEquipmentPlantInService	11838000000	usd
CY2022Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	11000000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	4423000000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Accumulated Depreciation PublicUtilitiesPropertyPlantAndEquipmentAccumulatedDepreciation	4146000000	usd
CY2022Q4	por	Public Utilities Property Plant And Equipment Plant In Service Net PublicUtilitiesPropertyPlantAndEquipmentPlantInServiceNet	7998000000	usd
CY2021Q4	por	Public Utilities Property Plant And Equipment Plant In Service Net PublicUtilitiesPropertyPlantAndEquipmentPlantInServiceNet	7692000000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	467000000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Construction Work In Progress PublicUtilitiesPropertyPlantAndEquipmentConstructionWorkInProgress	313000000	usd
CY2022Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	8465000000	usd
CY2021Q4	us-gaap	Public Utilities Property Plant And Equipment Net PublicUtilitiesPropertyPlantAndEquipmentNet	8005000000	usd
CY2022Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	150000000	usd
CY2022Q4	us-gaap	Us Government Securities At Carrying Value USGovernmentSecuritiesAtCarryingValue	19000000	usd
CY2022Q4	por	Corporate Debt Securities Held In Decommissioning Trust Assets CorporateDebtSecuritiesHeldInDecommissioningTrustAssets	9000000	usd
CY2022Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	11000000	usd
CY2022Q4	por	Fair Value Money Market Funds FairValueMoneyMarketFunds	1000000	usd
CY2022Q4	por	Domestic Equity Securities DomesticEquitySecurities	3000000	usd
CY2022Q4	por	Debt Securities Domestic Government DebtSecuritiesDomesticGovernment	3000000	usd
CY2022Q4	por	Commodity Contract Asset Electricity CommodityContractAssetElectricity	156000000	usd
CY2022Q4	por	Commodity Contract Asset Natural Gas CommodityContractAssetNaturalGas	231000000	usd
CY2022Q4	us-gaap	Financial Instruments Owned At Fair Value FinancialInstrumentsOwnedAtFairValue	11000000	usd
CY2022Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	583000000	usd
CY2022Q4	por	Commodity Contract Liabilities Electricity CommodityContractLiabilitiesElectricity	146000000	usd
CY2022Q4	por	Commodity Contract Liabilities Natural Gas CommodityContractLiabilitiesNaturalGas	47000000	usd
CY2022Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	193000000	usd
CY2021Q4	us-gaap	Cash And Cash Equivalents Fair Value Disclosure CashAndCashEquivalentsFairValueDisclosure	44000000	usd
CY2021Q4	us-gaap	Us Government Securities At Carrying Value USGovernmentSecuritiesAtCarryingValue	19000000	usd
CY2021Q4	por	Corporate Debt Securities Held In Decommissioning Trust Assets CorporateDebtSecuritiesHeldInDecommissioningTrustAssets	14000000	usd
CY2021Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	14000000	usd
CY2021Q4	us-gaap	Money Market Funds At Carrying Value MoneyMarketFundsAtCarryingValue	14000000	usd
CY2021Q4	por	Fair Value Money Market Funds FairValueMoneyMarketFunds	1000000	usd
CY2021Q4	por	Domestic Equity Securities DomesticEquitySecurities	4000000	usd
CY2021Q4	por	Debt Securities Domestic Government DebtSecuritiesDomesticGovernment	4000000	usd
CY2021Q4	por	Commodity Contract Asset Electricity CommodityContractAssetElectricity	17000000	usd
CY2021Q4	por	Commodity Contract Asset Natural Gas CommodityContractAssetNaturalGas	120000000	usd
CY2021Q4	us-gaap	Financial Instruments Owned At Fair Value FinancialInstrumentsOwnedAtFairValue	14000000	usd
CY2021Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	237000000	usd
CY2021Q4	por	Commodity Contract Liabilities Electricity CommodityContractLiabilitiesElectricity	123000000	usd
CY2021Q4	por	Commodity Contract Liabilities Natural Gas CommodityContractLiabilitiesNaturalGas	14000000	usd
CY2021Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	137000000	usd
CY2021Q4	por	Net Liabilities From Price Risk Management Activities Classified As Level3 NetLiabilitiesFromPriceRiskManagementActivitiesClassifiedAsLevel3	85000000	usd
CY2020Q4	por	Net Liabilities From Price Risk Management Activities Classified As Level3 NetLiabilitiesFromPriceRiskManagementActivitiesClassifiedAsLevel3	137000000	usd
CY2022	por	Realized And Unrealized Gains And Losses Net Commodity Contract RealizedAndUnrealizedGainsAndLossesNetCommodityContract	-84000000	usd
CY2021	por	Realized And Unrealized Gains And Losses Net Commodity Contract RealizedAndUnrealizedGainsAndLossesNetCommodityContract	-50000000	usd
CY2022	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	31000000	usd
CY2021	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Out Of Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersOutOfLevel3	2000000	usd
CY2022Q4	por	Net Liabilities From Price Risk Management Activities Classified As Level3 NetLiabilitiesFromPriceRiskManagementActivitiesClassifiedAsLevel3	32000000	usd
CY2021Q4	por	Net Liabilities From Price Risk Management Activities Classified As Level3 NetLiabilitiesFromPriceRiskManagementActivitiesClassifiedAsLevel3	85000000	usd
CY2022	por	Level3 Realized And Unrealized Losses Offset By Effect Of Regulatory Accounting Level3RealizedAndUnrealizedLossesOffsetByEffectOfRegulatoryAccounting	-82000000	usd
CY2021	por	Level3 Realized And Unrealized Losses Offset By Effect Of Regulatory Accounting Level3RealizedAndUnrealizedLossesOffsetByEffectOfRegulatoryAccounting	-55000000	usd
CY2022	por	Net Realized Losses NetRealizedLosses	-2000000	usd
CY2021	por	Net Realized Losses NetRealizedLosses	5000000	usd
CY2022	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0	usd
CY2021	us-gaap	Fair Value Measurement With Unobservable Inputs Reconciliation Recurring Basis Asset Transfers Into Level3 FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetTransfersIntoLevel3	0	usd
CY2022Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	13000000	usd
CY2022Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	2984000000	usd
CY2021Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	14000000	usd
CY2021Q4	us-gaap	Long Term Debt Fair Value LongTermDebtFairValue	3831000000	usd
CY2022Q4	por	Commodity Contract Asset Current Electricity CommodityContractAssetCurrentElectricity	112000000	usd
CY2021Q4	por	Commodity Contract Asset Current Electricity CommodityContractAssetCurrentElectricity	16000000	usd
CY2022Q4	por	Commodity Contract Asset Current Natural Gas CommodityContractAssetCurrentNaturalGas	201000000	usd
CY2021Q4	por	Commodity Contract Asset Current Natural Gas CommodityContractAssetCurrentNaturalGas	86000000	usd
CY2022Q4	por	Current Derivative Assets CurrentDerivativeAssets	313000000	usd
CY2021Q4	por	Current Derivative Assets CurrentDerivativeAssets	102000000	usd
CY2022Q4	por	Commodity Contract Asset Noncurrent Electricity CommodityContractAssetNoncurrentElectricity	44000000	usd
CY2021Q4	por	Commodity Contract Asset Noncurrent Electricity CommodityContractAssetNoncurrentElectricity	1000000	usd
CY2022Q4	por	Commodity Contract Asset Noncurrent Natural Gas CommodityContractAssetNoncurrentNaturalGas	30000000	usd
CY2021Q4	por	Commodity Contract Asset Noncurrent Natural Gas CommodityContractAssetNoncurrentNaturalGas	34000000	usd
CY2022Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	74000000	usd
CY2021Q4	us-gaap	Derivative Assets Noncurrent DerivativeAssetsNoncurrent	35000000	usd
CY2022Q4	por	Derivative Assets Total DerivativeAssetsTotal	387000000	usd
CY2021Q4	por	Derivative Assets Total DerivativeAssetsTotal	137000000	usd
CY2022Q4	por	Commodity Contract Liability Current Electricity CommodityContractLiabilityCurrentElectricity	93000000	usd
CY2021Q4	por	Commodity Contract Liability Current Electricity CommodityContractLiabilityCurrentElectricity	36000000	usd
CY2022Q4	por	Commodity Contract Liability Current Natural Gas CommodityContractLiabilityCurrentNaturalGas	25000000	usd
CY2021Q4	por	Commodity Contract Liability Current Natural Gas CommodityContractLiabilityCurrentNaturalGas	11000000	usd
CY2022Q4	por	Current Derivative Liabilities CurrentDerivativeLiabilities	118000000	usd
CY2021Q4	por	Current Derivative Liabilities CurrentDerivativeLiabilities	47000000	usd
CY2022Q4	por	Commodity Contract Liability Noncurrent Electricity CommodityContractLiabilityNoncurrentElectricity	53000000	usd
CY2021Q4	por	Commodity Contract Liability Noncurrent Electricity CommodityContractLiabilityNoncurrentElectricity	87000000	usd
CY2022Q4	por	Commodity Contract Liability Noncurrent Natural Gas CommodityContractLiabilityNoncurrentNaturalGas	22000000	usd
CY2021Q4	por	Commodity Contract Liability Noncurrent Natural Gas CommodityContractLiabilityNoncurrentNaturalGas	3000000	usd
CY2022Q4	por	Noncurrent Derivative Liabilities NoncurrentDerivativeLiabilities	75000000	usd
CY2021Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	3000000	usd
CY2021Q4	por	Noncurrent Derivative Liabilities NoncurrentDerivativeLiabilities	90000000	usd
CY2022Q4	por	Derivative Liabilities Total DerivativeLiabilitiesTotal	193000000	usd
CY2021Q4	por	Derivative Liabilities Total DerivativeLiabilitiesTotal	137000000	usd
CY2022Q4	por	Volume Related To Derivative Instruments Held At Balance Sheet Date Commodity Contracts Electricity VolumeRelatedToDerivativeInstrumentsHeldAtBalanceSheetDateCommodityContractsElectricity	6000000	mwh
CY2021Q4	por	Volume Related To Derivative Instruments Held At Balance Sheet Date Commodity Contracts Electricity VolumeRelatedToDerivativeInstrumentsHeldAtBalanceSheetDateCommodityContractsElectricity	4000000	mwh
CY2022Q4	por	Volume Related To Derivative Instruments At Balance Sheet Date Commodity Contracts Natural Gas VolumeRelatedToDerivativeInstrumentsAtBalanceSheetDateCommodityContractsNaturalGas	211000000	mmbtu
CY2021Q4	por	Volume Related To Derivative Instruments At Balance Sheet Date Commodity Contracts Natural Gas VolumeRelatedToDerivativeInstrumentsAtBalanceSheetDateCommodityContractsNaturalGas	181000000	mmbtu
CY2022Q4	por	Volume Relatedto Derivative Instruments Heldat Balance Sheet Date Foreign Currency VolumeRelatedtoDerivativeInstrumentsHeldatBalanceSheetDateForeignCurrency	10000000	cad
CY2021Q4	por	Volume Relatedto Derivative Instruments Heldat Balance Sheet Date Foreign Currency VolumeRelatedtoDerivativeInstrumentsHeldatBalanceSheetDateForeignCurrency	19000000	cad
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Liability Amount Not Offset Against Collateral DerivativeFairValueOfDerivativeLiabilityAmountNotOffsetAgainstCollateral	5000000	usd
CY2022Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	usd
CY2021Q4	us-gaap	Derivative Collateral Right To Reclaim Cash DerivativeCollateralRightToReclaimCash	0	usd
CY2022	por	Realized And Unrealized Gains And Losses Net Commodity Contracts Electricity RealizedAndUnrealizedGainsAndLossesNetCommodityContractsElectricity	-187000000	usd
CY2021	por	Realized And Unrealized Gains And Losses Net Commodity Contracts Electricity RealizedAndUnrealizedGainsAndLossesNetCommodityContractsElectricity	-38000000	usd
CY2020	por	Realized And Unrealized Gains And Losses Net Commodity Contracts Electricity RealizedAndUnrealizedGainsAndLossesNetCommodityContractsElectricity	160000000	usd
CY2022	por	Realized And Unrealized Gains And Losses Net Commodity Contracts Natural Gas RealizedAndUnrealizedGainsAndLossesNetCommodityContractsNaturalGas	-388000000	usd
CY2021	por	Realized And Unrealized Gains And Losses Net Commodity Contracts Natural Gas RealizedAndUnrealizedGainsAndLossesNetCommodityContractsNaturalGas	-177000000	usd
CY2020	por	Realized And Unrealized Gains And Losses Net Commodity Contracts Natural Gas RealizedAndUnrealizedGainsAndLossesNetCommodityContractsNaturalGas	-34000000	usd
CY2022	por	Realized And Unrealized Gains And Losses Net Commodity Contracts Foreign Currency RealizedAndUnrealizedGainsAndLossesNetCommodityContractsForeignCurrency	1000000	usd
CY2021	por	Realized And Unrealized Gains And Losses Net Commodity Contracts Foreign Currency RealizedAndUnrealizedGainsAndLossesNetCommodityContractsForeignCurrency	0	usd
CY2020	por	Realized And Unrealized Gains And Losses Net Commodity Contracts Foreign Currency RealizedAndUnrealizedGainsAndLossesNetCommodityContractsForeignCurrency	-1000000	usd
CY2022	por	Net Gain Or Loss Recognized In Statement Of Income Offset By Regulatory Accounting NetGainOrLossRecognizedInStatementOfIncomeOffsetByRegulatoryAccounting	-188000000	usd
CY2021	por	Net Gain Or Loss Recognized In Statement Of Income Offset By Regulatory Accounting NetGainOrLossRecognizedInStatementOfIncomeOffsetByRegulatoryAccounting	-119000000	usd
CY2020	por	Net Gain Or Loss Recognized In Statement Of Income Offset By Regulatory Accounting NetGainOrLossRecognizedInStatementOfIncomeOffsetByRegulatoryAccounting	12000000	usd
CY2022Q4	us-gaap	Deposit Assets DepositAssets	0	usd
CY2022Q4	us-gaap	Derivative Fair Value Of Derivative Asset Amount Offset Against Collateral DerivativeFairValueOfDerivativeAssetAmountOffsetAgainstCollateral	156000000	usd
CY2022Q4	us-gaap	Derivative Collateral Obligation To Return Securities DerivativeCollateralObligationToReturnSecurities	16000000	usd
CY2022Q4	us-gaap	Derivative Collateral Obligation To Return Cash DerivativeCollateralObligationToReturnCash	140000000	usd
CY2022Q4	us-gaap	Remaining Amounts Of Regulatory Assets For Which No Return On Investment During Recovery Period Is Provided RemainingAmountsOfRegulatoryAssetsForWhichNoReturnOnInvestmentDuringRecoveryPeriodIsProvided	274000000	usd
CY2022Q4	us-gaap	Regulatory Assets RegulatoryAssets	527000000	usd
CY2021Q4	us-gaap	Regulatory Assets RegulatoryAssets	557000000	usd
CY2022Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	1623000000	usd
CY2021Q4	us-gaap	Regulatory Liabilities RegulatoryLiabilities	1466000000	usd
CY2021	us-gaap	Deferred Purchased Power Costs DeferredPurchasedPowerCosts	62000000	usd
CY2022Q4	por	Trojan Decommissioning Activities TrojanDecommissioningActivities	170000000	usd
CY2021Q4	por	Trojan Decommissioning Activities TrojanDecommissioningActivities	139000000	usd
CY2022Q4	por	Asset Retirement Obligation Utility Plant AssetRetirementObligationUtilityPlant	86000000	usd
CY2021Q4	por	Asset Retirement Obligation Utility Plant AssetRetirementObligationUtilityPlant	95000000	usd
CY2022Q4	por	Asset Retirement Obligation Non Utility Property AssetRetirementObligationNonUtilityProperty	33000000	usd
CY2021Q4	por	Asset Retirement Obligation Non Utility Property AssetRetirementObligationNonUtilityProperty	35000000	usd
CY2022Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	289000000	usd
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	269000000	usd
CY2022Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	32000000	usd
CY2021Q4	us-gaap	Asset Retirement Obligation Current AssetRetirementObligationCurrent	31000000	usd
CY2022Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	257000000	usd
CY2021Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	238000000	usd
CY2022Q4	us-gaap	Decommissioning Liability Noncurrent DecommissioningLiabilityNoncurrent	6000000	usd
CY2022	us-gaap	Asset Retirement Obligation Liabilities Settled AssetRetirementObligationLiabilitiesSettled	11000000	usd
CY2022Q4	us-gaap	Recorded Third Party Environmental Recoveries Amount RecordedThirdPartyEnvironmentalRecoveriesAmount	6000000	usd
CY2021Q4	us-gaap	Recorded Third Party Environmental Recoveries Amount RecordedThirdPartyEnvironmentalRecoveriesAmount	5000000	usd
CY2022	us-gaap	Asset Retirement Obligations Significant Changes AssetRetirementObligationsSignificantChanges	13 million
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	269000000	usd
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	291000000	usd
CY2019Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	279000000	usd
CY2022	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	1000000	usd
CY2021	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	0	usd
CY2020	us-gaap	Asset Retirement Obligation Liabilities Incurred AssetRetirementObligationLiabilitiesIncurred	3000000	usd
CY2022	us-gaap	Asset Retirement Obligation Cash Paid To Settle AssetRetirementObligationCashPaidToSettle	27000000	usd
CY2021	us-gaap	Asset Retirement Obligation Cash Paid To Settle AssetRetirementObligationCashPaidToSettle	18000000	usd
CY2020	us-gaap	Asset Retirement Obligation Cash Paid To Settle AssetRetirementObligationCashPaidToSettle	18000000	usd
CY2022	por	Commercial Paper Maximum Term CommercialPaperMaximumTerm	P270D
CY2022	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	10000000	usd
CY2021	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	10000000	usd
CY2020	us-gaap	Asset Retirement Obligation Accretion Expense AssetRetirementObligationAccretionExpense	10000000	usd
CY2022	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	36000000	usd
CY2021	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	-14000000	usd
CY2020	us-gaap	Asset Retirement Obligation Revision Of Estimate AssetRetirementObligationRevisionOfEstimate	17000000	usd
CY2022Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	289000000	usd
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	269000000	usd
CY2020Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	291000000	usd
CY2022Q4	us-gaap	Line Of Credit Facility Current Borrowing Capacity LineOfCreditFacilityCurrentBorrowingCapacity	650000000	usd
CY2022Q4	us-gaap	Line Of Credit Facility Maximum Borrowing Capacity LineOfCreditFacilityMaximumBorrowingCapacity	750000000	usd
CY2022	por	Debt Instrument Covenant Ratio DebtInstrumentCovenantRatio	0.650
CY2022Q4	us-gaap	Ratio Of Indebtedness To Net Capital1 RatioOfIndebtednessToNetCapital1	0.569
CY2022Q4	us-gaap	Commercial Paper CommercialPaper	0	usd
CY2022Q4	us-gaap	Line Of Credit LineOfCredit	0	usd
CY2022Q4	us-gaap	Line Of Credit Facility Remaining Borrowing Capacity LineOfCreditFacilityRemainingBorrowingCapacity	650000000	usd
CY2022Q4	por	Letterofcreditfacility Letterofcreditfacility	220000000	usd
CY2022Q4	us-gaap	Letters Of Credit Outstanding Amount LettersOfCreditOutstandingAmount	97000000	usd
CY2022	por	Ferc Authorized Short Term Debt Effective Through February62014 FercAuthorizedShortTermDebtEffectiveThroughFebruary62014	900000000	usd
CY2022	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	2000000	usd
CY2021	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	139000000	usd
CY2020	us-gaap	Shortterm Debt Average Outstanding Amount ShorttermDebtAverageOutstandingAmount	131000000	usd
CY2022Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.034
CY2021Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.009
CY2020Q4	us-gaap	Short Term Debt Weighted Average Interest Rate ShortTermDebtWeightedAverageInterestRate	0.015
CY2022	por	Short Term Debt Maximum Amount Outstanding During Year ShortTermDebtMaximumAmountOutstandingDuringYear	135000000	usd
CY2021	por	Short Term Debt Maximum Amount Outstanding During Year ShortTermDebtMaximumAmountOutstandingDuringYear	230000000	usd
CY2020	por	Short Term Debt Maximum Amount Outstanding During Year ShortTermDebtMaximumAmountOutstandingDuringYear	225000000	usd
CY2022Q4	por	First Mortgage Bonds Minimum Rate FirstMortgageBondsMinimumRate	0.0182
CY2022Q4	por	First Mortgage Bonds Maximum Rate FirstMortgageBondsMaximumRate	0.0688
CY2022Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0409
CY2021Q4	us-gaap	Debt Weighted Average Interest Rate DebtWeightedAverageInterestRate	0.0411
CY2022Q4	us-gaap	Secured Debt SecuredDebt	3280000000	usd
CY2021Q4	us-gaap	Secured Debt SecuredDebt	3180000000	usd
CY2022Q4	us-gaap	Other Loans Payable Long Term OtherLoansPayableLongTerm	260000000	usd
CY2021Q4	us-gaap	Other Loans Payable Long Term OtherLoansPayableLongTerm	0	usd
CY2022Q4	us-gaap	Longterm Pollution Control Bond Current And Noncurrent LongtermPollutionControlBondCurrentAndNoncurrent	119000000	usd
CY2021Q4	us-gaap	Longterm Pollution Control Bond Current And Noncurrent LongtermPollutionControlBondCurrentAndNoncurrent	119000000	usd
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	3659000000	usd
CY2021Q4	us-gaap	Long Term Debt LongTermDebt	3299000000	usd
CY2022Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	13000000	usd
CY2021Q4	us-gaap	Debt Instrument Unamortized Discount DebtInstrumentUnamortizedDiscount	14000000	usd
CY2022Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	260000000	usd
CY2021Q4	us-gaap	Long Term Debt Current LongTermDebtCurrent	0	usd
CY2022Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3386000000	usd
CY2021Q4	us-gaap	Long Term Debt Noncurrent LongTermDebtNoncurrent	3285000000	usd
CY2020Q1	us-gaap	Longterm Pollution Control Bond Current And Noncurrent LongtermPollutionControlBondCurrentAndNoncurrent	119000000	usd
CY2020Q1	por	Pollution Control Revenue Bonds At2125 PollutionControlRevenueBondsAt2125	98000000	usd
CY2020Q1	por	Pollution Control Revenue Bonds At2375 PollutionControlRevenueBondsAt2375	21000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Next Twelve Months LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths	260000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Two LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo	80000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Three LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree	0	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Four LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour	0	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal In Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive	160000000	usd
CY2022Q4	us-gaap	Long Term Debt Maturities Repayments Of Principal After Year Five LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive	3159000000	usd
CY2022Q4	us-gaap	Long Term Debt LongTermDebt	3659000000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due In Next Rolling Twelve Months FinanceLeaseLiabilityPaymentsDueInNextRollingTwelveMonths	2000000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due In Rolling Year Two FinanceLeaseLiabilityPaymentsDueInRollingYearTwo	2000000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due In Rolling Year Three FinanceLeaseLiabilityPaymentsDueInRollingYearThree	5000000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due In Rolling Year Four FinanceLeaseLiabilityPaymentsDueInRollingYearFour	5000000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due In Rolling Year Five FinanceLeaseLiabilityPaymentsDueInRollingYearFive	5000000	usd
CY2022Q4	us-gaap	Finance Lease Liability Payments Due In Rolling After Year Five FinanceLeaseLiabilityPaymentsDueInRollingAfterYearFive	69000000	usd
CY2022Q4	us-gaap	Leveraged Leases Balance Sheet Investment In Leveraged Leases LeveragedLeasesBalanceSheetInvestmentInLeveragedLeases	88000000	usd
CY2022Q4	us-gaap	Unrecorded Unconditional Purchase Obligation Imputed Interest UnrecordedUnconditionalPurchaseObligationImputedInterest	61000000	usd
CY2022Q4	us-gaap	Leveraged Leases Balance Sheet Investment In Leveraged Leases Net LeveragedLeasesBalanceSheetInvestmentInLeveragedLeasesNet	27000000	usd
CY2022	us-gaap	Pension Contributions PensionContributions	0	usd
CY2022Q4	us-gaap	Assets Held In Trust Noncurrent AssetsHeldInTrustNoncurrent	38000000	usd
CY2021Q4	us-gaap	Assets Held In Trust Noncurrent AssetsHeldInTrustNoncurrent	45000000	usd
CY2022Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	83000000	usd
CY2021Q4	us-gaap	Other Postretirement Defined Benefit Plan Liabilities Noncurrent OtherPostretirementDefinedBenefitPlanLiabilitiesNoncurrent	95000000	usd
CY2022Q4	por	Otherpostretirementdefinedbenefitplanliabilitycurrent Otherpostretirementdefinedbenefitplanliabilitycurrent	2000000	usd
CY2021Q4	por	Otherpostretirementdefinedbenefitplanliabilitycurrent Otherpostretirementdefinedbenefitplanliabilitycurrent	2000000	usd
CY2022	us-gaap	Defined Benefit Plan Settlements Plan Assets DefinedBenefitPlanSettlementsPlanAssets	13000000	usd
CY2022	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	15000000	usd
CY2021	us-gaap	Defined Benefit Plan Actuarial Gain Loss DefinedBenefitPlanActuarialGainLoss	5000000	usd
CY2022	por	Defined Benefit Plan Benefit Obligation Changes Between Actual And Expected Return On Plan Assets Gains DefinedBenefitPlanBenefitObligationChangesBetweenActualAndExpectedReturnOnPlanAssetsGains	2000000	usd
CY2021	por	Defined Benefit Plan Benefit Obligation Changes Between Actual And Expected Return On Plan Assets Gains DefinedBenefitPlanBenefitObligationChangesBetweenActualAndExpectedReturnOnPlanAssetsGains	2000000	usd
CY2022	por	Defined Benefit Plan Effect Of Decrease Of Rate Of Return On Plan Assets On Service And Interest Cost Components DefinedBenefitPlanEffectOfDecreaseOfRateOfReturnOnPlanAssetsOnServiceAndInterestCostComponents	4000000	usd
CY2022	us-gaap	Defined Benefit Plan Effect Of One Percentage Point Increase On Service And Interest Cost Components DefinedBenefitPlanEffectOfOnePercentagePointIncreaseOnServiceAndInterestCostComponents	6000000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Next Twelve Months DefinedBenefitPlanExpectedFutureBenefitPaymentsNextTwelveMonths	65000000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Two DefinedBenefitPlanExpectedFutureBenefitPaymentsYearTwo	60000000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Three DefinedBenefitPlanExpectedFutureBenefitPaymentsYearThree	61000000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Four DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFour	61000000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Year Five DefinedBenefitPlanExpectedFutureBenefitPaymentsYearFive	58000000	usd
CY2022Q4	us-gaap	Defined Benefit Plan Expected Future Benefit Payments Five Fiscal Years Thereafter DefinedBenefitPlanExpectedFutureBenefitPaymentsFiveFiscalYearsThereafter	284000000	usd
CY2022	por	Company Match Pre2009 Hire CompanyMatchPre2009Hire	0.06
CY2022	por	Company Match Post2008 Hire CompanyMatchPost2008Hire	0.05
CY2022	por	Company Contribution Percentage To401 K For Post2008 Hires CompanyContributionPercentageTo401KForPost2008Hires	0.05
CY2022	por	Company Contribution Percent To401 K For Bargaining Employees CompanyContributionPercentTo401KForBargainingEmployees	0.01
CY2022	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	29000000	usd
CY2020	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	26000000	usd
CY2021	us-gaap	Defined Contribution Plan Employer Discretionary Contribution Amount DefinedContributionPlanEmployerDiscretionaryContributionAmount	26000000	usd
CY2022	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	9000000	usd
CY2021	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	4000000	usd
CY2020	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	6000000	usd
CY2022	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	24000000	usd
CY2021	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	14000000	usd
CY2020	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	17000000	usd
CY2022	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	33000000	usd
CY2021	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	18000000	usd
CY2020	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	23000000	usd
CY2022	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-1000000	usd
CY2021	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	0	usd
CY2020	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-22000000	usd
CY2022	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	7000000	usd
CY2021	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	5000000	usd
CY2020	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	-1000000	usd
CY2022	por	Deferred Income Tax Expense Footnote DeferredIncomeTaxExpenseFootnote	6000000	usd
CY2021	por	Deferred Income Tax Expense Footnote DeferredIncomeTaxExpenseFootnote	5000000	usd
CY2020	por	Deferred Income Tax Expense Footnote DeferredIncomeTaxExpenseFootnote	-23000000	usd
CY2022	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	39000000	usd
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	23000000	usd
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	usd
CY2022	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2021	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2020	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.210
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.116
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.119
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Credits EffectiveIncomeTaxRateReconciliationTaxCredits	0.205
CY2022	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.088
CY2021	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.089
CY2020	us-gaap	Effective Income Tax Rate Reconciliation State And Local Income Taxes EffectiveIncomeTaxRateReconciliationStateAndLocalIncomeTaxes	0.101
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation	0.008
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation	-0.002
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Depreciation EffectiveIncomeTaxRateReconciliationNondeductibleExpenseDepreciation	-0.049
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements State And Local EffectiveIncomeTaxRateReconciliationTaxSettlementsStateAndLocal	0
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements State And Local EffectiveIncomeTaxRateReconciliationTaxSettlementsStateAndLocal	-0.032
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Tax Settlements State And Local EffectiveIncomeTaxRateReconciliationTaxSettlementsStateAndLocal	0
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Amortization EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortization	-0.045
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Amortization EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortization	-0.048
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Nondeductible Expense Amortization EffectiveIncomeTaxRateReconciliationNondeductibleExpenseAmortization	-0.047
CY2022	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.002
CY2021	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.012
CY2020	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.010
CY2022	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.143
CY2021	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.086
CY2020	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0
CY2022Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	99000000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Employee Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsEmployeeBenefits	114000000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	75000000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Regulatory Assets And Liabilities DeferredTaxAssetsRegulatoryAssetsAndLiabilities	39000000	usd
CY2022Q4	por	Deferred Tax Assets Tax Credits Net Of Valuation Allowance DeferredTaxAssetsTaxCreditsNetOfValuationAllowance	102000000	usd
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CY2022Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	276000000	usd
CY2021Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	251000000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	547000000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Property Plant And Equipment DeferredTaxLiabilitiesPropertyPlantAndEquipment	536000000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	54000000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Derivatives DeferredTaxLiabilitiesDerivatives	0	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	101000000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Regulatory Assets DeferredTaxLiabilitiesRegulatoryAssets	121000000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	13000000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	7000000	usd
CY2022Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	715000000	usd
CY2021Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	664000000	usd
CY2022Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	439000000	usd
CY2021Q4	us-gaap	Deferred Tax Liabilities DeferredTaxLiabilities	413000000	usd
CY2022Q4	por	Tax Credit Carryforward Federal TaxCreditCarryforwardFederal	102000000	usd
CY2022Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	0	usd
CY2022Q4	us-gaap	Unrecognized Tax Benefits UnrecognizedTaxBenefits	0	usd
CY2022Q4	us-gaap	Deferred Tax Assets Other Tax Carryforwards DeferredTaxAssetsOtherTaxCarryforwards	9000000	usd
CY2022Q4	por	Employee Stock Purchase Plan Shares Authorized EmployeeStockPurchasePlanSharesAuthorized	625000	shares
CY2022	por	Employee Stock Purchase Plan Base Pay Threshold EmployeeStockPurchasePlanBasePayThreshold	0.10
CY2022	por	Employee Stock Purchase Plan Purchased Stock Value Limitation EmployeeStockPurchasePlanPurchasedStockValueLimitation	25000	usd
CY2022	por	Employee Stock Purchase Plan Share Purchase Limitation EmployeeStockPurchasePlanSharePurchaseLimitation	1500	shares
CY2022	por	Employee Stock Purchase Plan Purchase Price EmployeeStockPurchasePlanPurchasePrice	0.95
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CY2022	por	Dividend Reinvestment And Direct Stock Purchase Plan Shares DividendReinvestmentAndDirectStockPurchasePlanShares	2500000	shares
CY2022Q4	por	Dividend Reinvestment And Direct Stock Purchase Plan Number Of Available Shares DividendReinvestmentAndDirectStockPurchasePlanNumberOfAvailableShares	2458622	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedNumber	463390	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValue	43.52
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Grants In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriod	202883	shares
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CY2022	us-gaap	Loss Contingency Disclosures LossContingencyDisclosures	CONTINGENCIES<div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">PGE is subject to legal, regulatory, and environmental proceedings, investigations, and claims that arise from time to time in the ordinary course of its business. The Company may seek regulatory recovery of certain costs that are incurred in connection with such matters, although there can be no assurance that such recovery would be granted.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">PGE evaluates, on a quarterly basis, developments in such matters that could affect the amount of any accrual, as well as the likelihood of developments that would make a loss contingency both probable and reasonably estimable. The assessment as to whether a loss is probable or reasonably possible, and as to whether such loss or a range of such loss is estimable, often involves a series of complex judgments about future events. Management is often unable to estimate a reasonably possible loss, or a range of loss, particularly in cases in which: i) the damages sought are indeterminate or the basis for the damages claimed is not clear; ii) the proceedings are in the early stages; iii) discovery is not complete; iv) the matters involve novel or unsettled legal theories; v) significant facts are in dispute; vi) a large number of parties are represented (including circumstances in which it is uncertain how liability, if any, would be shared among multiple defendants); or vii) a wide range of potential outcomes exist. In such cases, there is considerable uncertainty regarding the timing or ultimate resolution, including any possible loss, fine, penalty, or business impact.</span></div><div><span><br/></span></div><div style="padding-left:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-style:italic;font-weight:700;line-height:120%">EPA Investigation of Portland Harbor</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">An investigation by the United States Environmental Protection Agency (EPA) of a segment of the Willamette River known as Portland Harbor that began in 1997 revealed significant contamination of river sediments. The EPA subsequently included Portland Harbor on the National Priority List pursuant to the federal Comprehensive Environmental Response, Compensation, and Liability Act as a federal Superfund site. PGE has been included among more than one hundred Potentially Responsible Parties (PRPs) as it historically owned or operated property near the river. </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">A Portland Harbor site remedial investigation was completed pursuant to an agreement between the EPA and several PRPs known as the Lower Willamette Group (LWG), which did not include PGE. The LWG funded the remedial investigation and feasibility study and stated that it had incurred $115 million in investigation-related costs. The Company anticipates that such costs will ultimately be allocated to PRPs as a part of the allocation process for remediation costs of the EPA’s preferred remedy. </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">The EPA finalized the feasibility study, along with the remedial investigation, and the results provided the framework for the EPA to determine a clean-up remedy for Portland Harbor that was documented in a Record of Decision (ROD) issued in 2017. The ROD outlined the EPA’s selected remediation plan for clean-up of Portland Harbor that had an undiscounted estimated total cost of $1.7 billion, comprised of $1.2 billion related to remediation construction costs and $0.5 billion related to long-term operation and maintenance costs. Remediation construction </span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">costs were estimated to be incurred over a 13-year period, with long-term operation and maintenance costs estimated to be incurred over a 30-year period from the start of construction. Stakeholders have raised concerns that EPA’s cost estimates are understated, and PGE estimates undiscounted total remediation costs for Portland Harbor per the ROD could range from $1.9 billion to $3.5 billion. The EPA acknowledged the estimated costs are based on data that was outdated and that pre-remedial design sampling was necessary to gather updated baseline data to better refine the remedial design and estimated cost. </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:115%">A small group of PRPs performed pre-remedial design sampling to update baseline data and submitted the data in an updated evaluation report to the EPA for review. The evaluation report concluded that the conditions of the Portland Harbor have improved substantially over the past ten years. In response, the EPA indicated that while it would use the data to inform implementation of the ROD, the EPA’s conclusions remained materially unchanged. With the completion of pre-remedial design sampling, Portland Harbor is now in the remedial design phase, which consists of additional technical information and data collection to be used to design the expected remedial actions. Certain PRPs, not including PGE, have entered into consent agreements to perform remedial design and the EPA has indicated it will take the initial lead to perform remedial design on the remaining areas. The Company anticipates that remedial design costs will ultimately be allocated to PRPs as a part of the allocation process for remediation costs of the EPA’s preferred remedy. The EPA announced in February 2021 that the entirety of Portland Harbor was under an active engineering design phase. </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">PGE continues to participate in a voluntary process to determine an appropriate allocation of costs amongst the PRPs. Significant uncertainties remain surrounding facts and circumstances that are integral to the determination of such an allocation percentage, including conclusion of remedial design, a final allocation methodology, and data with regard to property specific activities and history of ownership of sites within Portland Harbor that will inform the precise boundaries for clean-up. It is probable that PGE will share in a portion of the costs related to Portland Harbor. Based on the above facts and remaining uncertainties in the voluntary allocation process, PGE does not currently have sufficient information to reasonably estimate the amount, or range, of its potential liability or determine an allocation percentage that represents PGE’s portion of the liability to clean-up Portland Harbor. However, the Company may obtain sufficient information, prior to the final determination of allocation percentages among PRPs, to develop a reasonable estimate, or range, of its potential liability that would require recording of the estimate, or low end of the range. The Company’s liability related to the cost of remediating Portland Harbor could be material to PGE’s financial position.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">In cases in which injuries to natural resources have occurred as a result of releases of hazardous substances, federal and state natural resource trustees may seek to recover for damages at such sites, which are referred to as Natural Resource Damages (NRD). The EPA does not manage NRD assessment activities but does provide claims information and coordination support to the NRD trustees. NRD assessment activities are typically conducted by a Council made up of the trustee entities for the site. The Portland Harbor NRD trustees consist of the National Oceanic and Atmospheric Administration, the U.S. Fish and Wildlife Service, the State, the Confederated Tribes of the Grand Ronde Community of Oregon, the Confederated Tribes of Siletz Indians, the Confederated Tribes of the Umatilla Indian Reservation, the Confederated Tribes of the Warm Springs Reservation of Oregon, and the Nez Perce Tribe.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">The NRD trustees may seek to negotiate legal settlements or take other legal actions against the parties responsible for the damages. Funds from such settlements must be used to restore injured resources and may also compensate the trustees for costs incurred in assessing the damages. The Company believes that PGE’s portion of NRD liabilities related to Portland Harbor will not have a material impact on its results of operations, financial position, or cash flows.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">The impact of costs related to EPA and NRD liabilities on the Company’s results of operations is mitigated by the Portland Harbor Environmental Remediation Account (PHERA) mechanism. As approved by the OPUC in 2017, the PHERA allows the Company to defer and recover incurred estimated liabilities and environmental expenditures related to Portland Harbor through a combination of third-party proceeds, including but not limited to insurance </span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">recoveries, and, if necessary, through customer prices. The mechanism established annual prudency reviews of environmental expenditures and third-party proceeds. Annual expenditures in excess of $6 million, excluding expenses related to contingent liabilities, are subject to an annual earnings test and would be ineligible for recovery to the extent PGE’s actual regulated return on equity exceeds its return on equity as authorized by the OPUC in PGE’s most recent GRC. PGE’s results of operations may be impacted to the extent such expenditures are deemed imprudent by the OPUC or ineligible per the prescribed earnings test. The Company plans to seek recovery of any costs resulting from EPA’s determination of liability for Portland Harbor through application of the PHERA. At this time, PGE is not recovering any Portland Harbor cost from the PHERA through customer prices.</span></div><div><span><br/></span></div><div style="padding-left:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-style:italic;font-weight:700;line-height:120%">Governmental Investigations</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">In March, April, and May 2021, the Division of Enforcement of the Commodity Futures Trading Commission (the "CFTC"), the Division of Enforcement of the SEC, and the Division of Enforcement of the FERC, respectively, informed the Company they are conducting investigations arising out of the energy trading losses the Company previously announced in August 2020. The Company is cooperating with the CFTC, SEC, and FERC. Management cannot at this time predict the eventual scope or outcome of these matters.</span></div><div><span><br/></span></div><div style="text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-style:italic;font-weight:700;line-height:120%">Colstrip-Related Litigation</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:115%">The Company has a 20% ownership interest in Colstrip, which is operated by one of the co-owners, Talen Montana, LLC (Talen). On May 10, 2022, Talen’s parent company, Talen Energy Supply, LLC, filed for chapter 11 bankruptcy protection, although Colstrip continues to operate and generate electricity for PGE customers and others. Various business disagreements have arisen amongst the co-owners regarding interpretation of the Ownership and Operation (O&O) Agreement and other matters. An arbitration process has been initiated to address such business disagreements and has resulted in several legal proceedings. These legal proceedings, as well as other matters related to Colstrip, are summarized below.</span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%"> </span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-style:italic;font-weight:400;line-height:120%">Arbitration—</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">On March 12, 2021, co-owner NorthWestern Corporation (NorthWestern) initiated arbitration against all other co-owners of Colstrip to determine whether co-owners representing 55% or more of the ownership shares can vote to close one or both units of Colstrip, or, alternatively, whether unanimous consent is required. The O&O Agreement among the parties states that any dispute shall be submitted for resolution to a single arbitrator with appropriate expertise. This arbitration process was initially stayed as a result of the bankruptcy filing of Talen’s parent company, but that stay was lifted in August 2022, by a voluntary stipulation, described below. The arbitration has once again been stayed through March 31, 2023, by agreement of the parties. PGE cannot predict the ultimate outcome of the arbitration process.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-style:italic;font-weight:400;line-height:120%">Petition to compel arbitration—</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">In April 2021, Avista Corporation, Puget Sound Energy Inc., PacifiCorp, and PGE (the Petitioners) petitioned in Spokane County Superior Court, Washington, Case No. 21201000-32, against NorthWestern and Talen to compel the arbitration initiated by NorthWestern that is described above. In May 2021, Talen removed the case to Federal Court (Eastern District of Washington Case No. 2:21-cv-00163-RMP). Following a hearing in July 2021, Talen’s motion to transfer the case to the U.S. District Court for the District of Montana was granted. This matter is stayed, because of the bankruptcy filing of Talen’s parent company. The voluntary stipulation described below (see </span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-style:italic;font-weight:400;line-height:120%">“Challenge to constitutionality of Montana Senate Bills 265 and 266 (MSB 265 and MSB 266)”</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">) did not lift the stay on this court action.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-style:italic;font-weight:400;line-height:120%">Challenge to constitutionality of Montana Senate Bills 265 and 266 (MSB 265 and MSB 266)—</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">On May 4, 2021, the Petitioners filed a claim against NorthWestern and Talen in U.S. District Court - Montana, Billings Division, Case No. 1:21-cv-00047-SPW-KLD, based on the passage of MSB 265, which attempted to void contractual arbitration provisions within the O&O Agreement if they do not provide for three arbitrators or provide for venue outside of the county where the plant is located. </span><span style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">The passage of MSB 265 was supported by Defendants and purported to void the O&O Agreement among all parties, which provides for one arbitrator and venue in Spokane, Washington. The </span></div><div><span style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Petitioners allege that MSB 265 violated the contracts clause of the U.S. Constitution and the Montana Constitution, and is preempted by the Federal Arbitration Act (FAA).</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%"> The Petitioners sought declaratory relief that MSB 265 was unconstitutional as applied to the O&O Agreement and the FAA preempted the enforcement of MSB 265.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Petitioners filed a First Amended Complaint on May 19, 2021, adding the Attorney General of Montana (Montana AG) as defendant and challenging the constitutionality of MSB 266, which purportedly gives the Montana AG authority to penalize and restrain any co-owner of Colstrip who takes steps to shut-down the plant without unanimous consent, and authority to penalize any co-owner who fails or refuses to pay the costs to maintain the plant. The Court held a hearing on August 6, 2021 and on October 13, 2021, the Court issued an order that granted the Petitioners’ Motion for Preliminary Injunction, enjoining the Montana AG from enforcing MSB 266 against them.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">On August 17, 2021, the Petitioners filed for partial summary judgment on their claim to declare MSB 265 preempted by the FAA and unconstitutional. On October 29, 2021, the Petitioners filed a motion for partial summary judgment on their claim to declare MSB 266 unconstitutional and unenforceable. A decision on this matter had been stayed as a result of the bankruptcy filing of Talen’s parent company, but the stay was lifted by a voluntary stipulation filed by Petitioners, Talen, and NorthWestern, and ordered by the bankruptcy court on August 25, 2022. On September 29, 2022, the Magistrate Judge issued Findings and Recommendations, which were adopted in full by the Court on October 19, 2022, granting both of the Petitioners’ motions for summary judgment regarding the constitutionality of MSB 265 and MSB 266 by finding that MSB 266 was unconstitutional, and MSB 265 was unconstitutional and in the alternative preempted by the FAA.</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-style:italic;font-weight:400;line-height:120%">Complaint to implement MSB 265—</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">On May 4, 2021, Talen filed a complaint against the Petitioners and NorthWestern, in the Thirteenth Judicial District Court in the State of Montana, as an attempt to implement Montana laws when determining the language of the O&O agreement based on the recent enactment of MSB 265. The case was subsequently removed to the U.S. District Court - Montana, Billings Division, Case No. 1:21-cv-00058-SPW-TJC. This matter is stayed, because of the bankruptcy filing of Talen’s parent company. </span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-style:italic;font-weight:400;line-height:112%">Richard Burnett; Colstrip Properties Inc., et al v. Talen Montana, LLC; PGE, et al—</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:112%">In December 2020, the original claim was filed in the Montana Sixteenth Judicial District Court, Rosebud County, Cause No. CV-20-58. The plaintiffs allege they have suffered adverse effects from the defendants’ coal dust. In August 2021, the claim was amended to add PGE as a defendant. Plaintiffs are seeking economic damages, costs and disbursements, punitive damages, attorneys’ fees, and an injunction prohibiting defendants from allowing coal dust to blow onto plaintiffs’ properties, as determined by the Court.</span><span style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:112%"> The Court set trial to begin September 26, 2023</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:112%">. This matter was stayed as a result of the bankruptcy filing of Talen’s parent company. On September 23, 2022, by stipulation by the parties and order of the Court, the stay was modified to allow for some limited discovery by the parties in this matter. Pursuant to a stipulation by the parties, litigation can fully resume after February 13, 2023.</span></div><div><span><br/></span></div><div><span style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">Since these lawsuits (</span><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">except for the challenge to constitutionality of MSB 265 and MSB 266) </span><span style="background-color:#ffffff;color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">are in early stages, the Company is unable to predict outcomes or estimate a range of reasonably possible losses.</span></div><div><span><br/></span></div><div style="text-indent:36pt"><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-style:italic;font-weight:700;line-height:120%">Other Matters</span></div><div><span><br/></span></div><div><span style="color:#000000;font-family:'Times New Roman',sans-serif;font-size:11pt;font-weight:400;line-height:120%">PGE is subject to other regulatory, environmental, and legal proceedings, investigations, and claims that arise from time to time in the ordinary course of business, which may result in judgments against the Company. Although management currently believes that resolution of such known matters, individually and in the aggregate, will not have a material impact on its financial position, results of operations, or cash flows, these matters are subject to inherent uncertainties, and management’s view of these matters may change in the future.</span></div>
CY2022	por	Number Of Names Of Other Potentially Responsible Parties NumberOfNamesOfOtherPotentiallyResponsibleParties	100	name
CY2022	us-gaap	Litigation Settlement Expense LitigationSettlementExpense	115000000	usd
CY2022Q4	us-gaap	Loss Contingency Estimate Of Possible Loss LossContingencyEstimateOfPossibleLoss	1700000000	usd
CY2022Q4	us-gaap	Loss Contingency Range Of Possible Loss Portion Not Accrued LossContingencyRangeOfPossibleLossPortionNotAccrued	500000000	usd
CY2022Q4	por	Lower Range Of Costs LowerRangeOfCosts	1900000000	usd
CY2022Q4	por	Upper Range Of Costs UpperRangeOfCosts	3500000000	usd
CY2022	us-gaap	Payments For Environmental Liabilities PaymentsForEnvironmentalLiabilities	6000000	usd

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$POR
Portland General Electric Co Stock $por

2023 Q1 Form 10-K Financial Statement

#000078497723000005 Filed on February 16, 2023

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$POR Portland General Electric Co Stock $por

2023 Q1 Form 10-K Financial Statement

#000078497723000005 Filed on February 16, 2023

Income Statement

Balance Sheet

Cashflow Statement

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$POR
Portland General Electric Co Stock $por