Commitments and Guarantees (Tables)

12 Months Ended

Dec. 31, 2020

Long-term Purchase Commitment [Line Items]

Unrecorded Unconditional Purchase Obligations Disclosure [Table Text Block]

As of December 31, 2020, PGE’s estimated future minimum payments pursuant to purchase obligations for the following five years and thereafter are as follows (in millions):

	Payments Due
	2021		2022		2023		2024		2025		Thereafter		Total
Capital and other purchase commitments	$	237	$	33	$	20	$	1	$	1	$	55	$	347
Purchased power and fuel:
Electricity purchases	250		257		284		278		249		2,886		4,204
Capacity contracts	9		9		9		9		9		—		45
Public utility districts	21		19		18		17		17		39		131
Natural gas	57		42		37		43		43		578		800
Coal and transportation	27		27		27		27		27		—		135
Total	$	601	$	387	$	395	$	375	$	346	$	3,558	$	5,662

Schedule of Long-term Contracts for Purchase of Electric Power [Table Text Block]

PGE has long-term power purchase agreements with certain public utility districts (PUDs) in the state of Washington:

•Grant County PUD for the Priest Rapids and Wanapum Hydroelectric Projects, and

•Douglas County PUD for the Wells Hydroelectric Project.

Under the Grant County agreements, the Company is required to pay its proportionate share of the operating and debt service costs of the hydroelectric projects whether they are operable or not. Under the Douglas County agreement, the Company is required to make monthly payments for capacity that will not vary with annual project generation provided to PGE. The Company has estimated the capacity payments, which are subject to annual adjustments based on Douglas County’s loads, and included the estimated amounts in the table above. The future minimum payments for the PUDs in the preceding table reflect the principal and capacity payments only and do not include interest, operation, or maintenance expenses.

Selected information regarding these projects is summarized as follows (dollars in millions):

	Capacity Charges and Revenue Bonds as of December 31, 2020		PGE’s Average Share as of December 31, 2020			Contract Expiration	Total PGE Contract Costs
			Output		Capacity		2020		2019		2018
					(in MW)
Priest Rapids and Wanapum	$	1,880	8.6	%	163	2052	$	25	$	21	$	17
Wells	572		16.6		94	2028	23		16		11