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Jointly-owned Plant (Tables)
12 Months Ended
Dec. 31, 2023
Jointly-owned Plant [Abstract]  
Schedule of Jointly Owned Utility Plants [Table Text Block]
As of December 31, 2023, PGE had the following investments in jointly-owned plant (dollars in millions):
 PGE
Share
In-service DatePlant
In-service
Accumulated
Depreciation *
Construction
Work In
Progress
Colstrip20.00 %1986$572 $456 $
Pelton/Round Butte
50.01 %1958/1964216 72 18 
Total$788 $528 $19 
* Excludes AROs and accumulated asset retirement removal costs.