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Leases (Details Textuals) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Lessee, Lease, Description [Line Items]      
Depreciation expense associated with property under operating leases $ 9 $ 8 $ 11
Minimum      
Lessee, Lease, Description [Line Items]      
Lessee, lease terms 1 year    
Lessor, operating lease term 9 years    
Maximum      
Lessee, Lease, Description [Line Items]      
Lessee, lease terms 52 years    
Lessor, operating lease term 24 years    
DTE Electric | Minimum      
Lessee, Lease, Description [Line Items]      
Lessee, lease terms 1 year    
DTE Electric | Maximum      
Lessee, Lease, Description [Line Items]      
Lessee, lease terms 52 years