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Significant Accounting Policies (Financing Receivables Classified by Internal Grade of Credit Risk) (Details) $ in Millions | Jun. 30, 2023 USD ($)
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Notes receivable |
Financing receivables by year of origination |
2023 | $ 17
2022 | 70
2021 and Prior | 24
Total | 111
Notes receivable | DTE Electric |
Financing receivables by year of origination |
Total | 2
Notes receivable | Internal grade 1 |
Financing receivables by year of origination |
2023 | 0
2022 | 0
2021 and Prior | 6
Total | 6
Notes receivable | Internal grade 1 | DTE Electric |
Financing receivables by year of origination |
Total | 2
Notes receivable | Internal grade 2 |
Financing receivables by year of origination |
2023 | 17
2022 | 70
2021 and Prior | 18
Total | 105
Notes receivable | Internal grade 2 | DTE Electric |
Financing receivables by year of origination |
Total | 0
Net investment in leases |
Financing receivables by year of origination |
2023 | 0
2022 | 67
2021 and Prior | 224
Total | 291
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 |
2023 | 0
2022 | 0
2021 and Prior | 37
Total | 37
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 |
2023 | 0
2022 | 67
2021 and Prior | 187
Total | 254
Net investment in leases | Internal grade 2 | DTE Electric |
Financing receivables by year of origination |
Total | $ 0

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