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Jointly-Owned Utility Plant (Tables)
12 Months Ended
Dec. 31, 2024
Jointly Owned Utility Plant, Net Ownership Amount [Abstract]  
Schedule of Jointly-Owned Utility Plants
DTE Electric's ownership information of the two utility plants as of December 31, 2024 was as follows:
Belle RiverLudington
Hydroelectric
Pumped Storage
In-service date1984-19851973
Total plant capacity1,270 MW2,290 MW
Ownership interest81%49%
Investment in Property, plant, and equipment (in millions)$2,053 $656 
Accumulated depreciation (in millions)$1,140 $160