Commitments and Guarantees Schdule of Long term contracts for purchase of electric power (Details) $ in Millions	12 Months Ended
	Dec. 31, 2024 USD ($) MW	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Priest Rapids and Wanapum [Member]
Long-term Contract for Purchase of Electric Power [Line Items]
Revenue Bonds issued by the Public Utility Districts	$ 1,673
PGE Share of Output	8.60%
PGE Share of Capacity | MW	163
commitment costs	$ 75	$ 77	$ 45
Wells [Member]
Long-term Contract for Purchase of Electric Power [Line Items]
Revenue Bonds issued by the Public Utility Districts	$ 273
PGE Share of Output	9.00%
PGE Share of Capacity | MW	29
commitment costs	$ 11	$ 11	$ 12