0000784977 2020-08-24 2020-08-24 0000784977 us-gaap:CommonStockMember 2020-08-24 2020-08-24 0000784977 us-gaap:MediumTermNotesMember 2020-08-24 2020-08-24 0000784977 false 8-K 2020-08-24 PORTLAND GENERAL ELECTRIC COMPANY OR 001-5532-99 93-0256820 121 SW Salmon Street Portland OR 97204 503 464-8000 false false false false Common Stock, no par value POR NYSE 9.31% Medium-Term Notes due 2021 POR 21 NYSE false