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Significant Accounting Policies (Financing Receivables Classified by Internal Grade of Credit Risk) (Details) $ in Millions | Dec. 31, 2024 USD ($)
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Notes receivable |
Financing receivables by year of origination |
2024 | $ 622
2023 | 7
2022 and prior | 257
Total | 886
Notes receivable | DTE Electric |
Financing receivables by year of origination |
Total | 44
Notes receivable | Internal grade 1 |
Financing receivables by year of origination |
2024 | 0
2023 | 1
2022 and prior | 4
Total | 5
Notes receivable | Internal grade 1 | DTE Electric |
Financing receivables by year of origination |
Total | 43
Notes receivable | Internal grade 1 | DTE Electric | Affiliates |
Financing receivables by year of origination |
Total | 42
Notes receivable | Internal grade 2 |
Financing receivables by year of origination |
2024 | 622
2023 | 6
2022 and prior | 253
Total | 881
Notes receivable | Internal grade 2 | DTE Electric |
Financing receivables by year of origination |
Total | 1
Net investment in leases |
Financing receivables by year of origination |
2024 | 4
2023 | 0
2022 and prior | 36
Total | 40
Net investment in leases | DTE Electric |
Financing receivables by year of origination |
Total | 0
Net investment in leases | Internal grade 1 |
Financing receivables by year of origination |
2024 | 0
2023 | 0
2022 and prior | 36
Total | 36
Net investment in leases | Internal grade 1 | DTE Electric |
Financing receivables by year of origination |
Total | 0
Net investment in leases | Internal grade 2 |
Financing receivables by year of origination |
2024 | 4
2023 | 0
2022 and prior | 0
Total | 4
Net investment in leases | Internal grade 2 | DTE Electric |
Financing receivables by year of origination |
Total | $ 0

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