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Significant Accounting Policies (Financing Receivables Classified by Internal Grade of Credit Risk) (Details) $ in Millions | Dec. 31, 2023 USD ($)
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Notes receivable |
Financing receivables by year of origination |
2023 | $ 42
2022 | 112
2021 and prior | 21
Total | 175
Notes receivable | DTE Electric |
Financing receivables by year of origination |
Total | 19
Notes receivable | Internal grade 1 |
Financing receivables by year of origination |
2023 | 19
2022 | 0
2021 and prior | 4
Total | 23
Notes receivable | Internal grade 1 | DTE Electric |
Financing receivables by year of origination |
Total | 18
Notes receivable | Internal grade 2 |
Financing receivables by year of origination |
2023 | 23
2022 | 112
2021 and prior | 17
Total | 152
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 |
2023 | 0
2022 | 66
2021 and prior | 221
Total | 287
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 | 66
2021 and prior | 184
Total | 250
Net investment in leases | Internal grade 2 | DTE Electric |
Financing receivables by year of origination |
Total | $ 0

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- Definition Amortized cost excluding accrued interest, before allowance for credit loss, of financing receivable. Excludes net investment in lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org//1943274/2147479344/326-20-45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3B -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-3B Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 326 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479319/326-20-50-5 + Details
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