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Leases (Tables) | 12 Months Ended
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Dec. 31, 2023
Leases [Abstract] |
Components of Lease Cost and Other Information Related to Leases | The following is a summary of the components of lease cost for the years ended December 31:
| DTE Energy |  | DTE Electric
| 2023 |  | 2022 |  | 2021 |  | 2023 |  | 2022 |  | 2021 |  |
| (In millions)
Operating lease cost | $ | 22 |  |  | $ | 18 |  |  | $ | 19 |  |  | $ | 17 |  |  | $ | 12 |  |  | $ | 14 |  |  |
Finance lease cost: |  |  |  |  |  |  |  |  |  |  |  |  |
Amortization of right-of-use assets | 7 |  |  | 7 |  |  | 7 |  |  | 6 |  |  | 6 |  |  | 6 |  |  |
Interest of lease liabilities | — |  |  | 1 |  |  | 1 |  |  | — |  |  | — |  |  | — |  |  |
Total finance lease cost | 7 |  |  | 8 |  |  | 8 |  |  | 6 |  |  | 6 |  |  | 6 |  |  |
Variable lease cost | 13 |  |  | 9 |  |  | 9 |  |  | — |  |  | — |  |  | — |  |  |
Short-term lease cost | 12 |  |  | 19 |  |  | 14 |  |  | 4 |  |  | 10 |  |  | 6 |  |  |
| $ | 54 |  |  | $ | 54 |  |  | $ | 50 |  |  | $ | 27 |  |  | $ | 28 |  |  | $ | 26 |  |  |
The following is a summary of other information related to leases for the years ended December 31:
| DTE Energy |  | DTE Electric
| 2023 |  | 2022 |  | 2021 |  | 2023 |  | 2022 |  | 2021
| (In millions)
Supplemental Cash Flows Information |  |  |  |  |  |  |  |  |  |  |
Cash paid for amounts included in the measurement of these liabilities: |  |  |  |  |  |  |  |  |  |  |
Operating cash flows for finance leases | $ | 9 |  |  | $ | 8 |  |  | $ | 8 |  |  | $ | 7 |  |  | $ | 7 |  |  | $ | 7 |
Operating cash flows for operating leases | $ | 19 |  |  | $ | 17 |  |  | $ | 19 |  |  | $ | 15 |  |  | $ | 12 |  |  | $ | 14 |
Right-of-use assets obtained in exchange for lease obligations: |  |  |  |  |  |  |  |  |  |  |
Operating leases | $ | 61 |  |  | $ | 5 |  |  | $ | 5 |  |  | $ | 61 |  |  | $ | 2 |  |  | $ | 1 |
Finance leases | $ | 5 |  |  | $ | 3 |  |  | $ | 3 |  |  | $ | 5 |  |  | $ | 1 |  |  | $ | 1 |
Weighted Average Remaining Lease Term (Years) |  |  |  |  |  |  |  |  |  |  |
Operating leases | 18.7 |  | 12.8 |  | 12.7 |  | 19.8 |  | 11.1 |  | 10.3
Finance leases | 8.9 |  | 8.2 |  | 7.8 |  | 4.5 |  | 1.1 |  | 2.1
Weighted Average Discount Rate |  |  |  |  |  |  |  |  |  |  |
Operating leases | 4.4 | % |  | 3.7 | % |  | 3.6 | % |  | 4.5 | % |  | 3.4 | % |  | 3.4 | %
Finance leases | 4.0 | % |  | 2.4 | % |  | 2.2 | % |  | 5.4 | % |  | 1.0 | % |  | 1.0 | %
Schedule of Maturities of Operating Leases | The Registrants' future minimum lease payments under leases for remaining periods as of December 31, 2023 are as follows:
| DTE Energy |  | DTE Electric
| Operating Leases |  | Finance Leases |  | Operating Leases |  | Finance Leases
| (In millions)
2024 | $ | 20 |  |  | $ | 3 |  |  | $ | 16 |  |  | $ | 2 |
2025 | 15 |  |  | 3 |  |  | 12 |  |  | 1 |
2026 | 14 |  |  | 2 |  |  | 10 |  |  | 1 |
2027 | 12 |  |  | 2 |  |  | 10 |  |  | 1 |
2028 | 10 |  |  | 2 |  |  | 8 |  |  | 1 |
2029 and thereafter | 134 |  |  | 6 |  |  | 110 |  |  | — |
Total future minimum lease payments | 205 |  |  | 18 |  |  | 166 |  |  | 6 |
Imputed interest | (80) |  |  | (2) |  |  | (70) |  |  | — |
Lease liabilities | $ | 125 |  |  | $ | 16 |  |  | $ | 96 |  |  | $ | 6 |
Schedule of Maturities of Finance Leases | The Registrants' future minimum lease payments under leases for remaining periods as of December 31, 2023 are as follows:
| DTE Energy |  | DTE Electric
| Operating Leases |  | Finance Leases |  | Operating Leases |  | Finance Leases
| (In millions)
2024 | $ | 20 |  |  | $ | 3 |  |  | $ | 16 |  |  | $ | 2 |
2025 | 15 |  |  | 3 |  |  | 12 |  |  | 1 |
2026 | 14 |  |  | 2 |  |  | 10 |  |  | 1 |
2027 | 12 |  |  | 2 |  |  | 10 |  |  | 1 |
2028 | 10 |  |  | 2 |  |  | 8 |  |  | 1 |
2029 and thereafter | 134 |  |  | 6 |  |  | 110 |  |  | — |
Total future minimum lease payments | 205 |  |  | 18 |  |  | 166 |  |  | 6 |
Imputed interest | (80) |  |  | (2) |  |  | (70) |  |  | — |
Lease liabilities | $ | 125 |  |  | $ | 16 |  |  | $ | 96 |  |  | $ | 6 |
Schedule of Finance Leases Reported on Consolidated Statement of Financial Position | Finance leases reported on the Consolidated Statements of Financial Position are as follows for the years ended December 31:
| DTE Energy |  | DTE Electric
| 2023 |  | 2022 |  | 2023 |  | 2022
| (In millions)
Right-of-use assets, within Property, plant, and equipment, net | $ | 18 |  |  | $ | 19 |  |  | $ | 6 |  |  | $ | 6 |
Current lease liabilities, within Current portion of long-term debt | $ | 3 |  |  | $ | 8 |  |  | $ | 2 |  |  | $ | 6 |
Long-term lease liabilities | $ | 13 |  |  | $ | 11 |  |  | $ | 4 |  |  | $ | 1 |
Schedule of Lease Income Associated with Operating Leases | DTE Energy’s lease income associated with operating leases, including the line items in which it was included on the Consolidated Statements of Operations, was as follows:
| 2023 |  | 2022 |  | 2021
| (In millions)
Fixed payments | $ | 15 |  |  | $ | 15 |  |  | $ | 67 |
Variable payments | 44 |  |  | 67 |  |  | 131 |
| $ | 59 |  |  | $ | 82 |  |  | $ | 198 |
Operating revenues | $ | 59 |  |  | $ | 82 |  |  | $ | 103 |
Other income(a) | — |  |  | — |  |  | 95 |
| $ | 59 |  |  | $ | 82 |  |  | $ | 198 |
_______________________________________ (a)Decrease in 2022 is due to the closure of the REF business.
Schedule of Minimum Future Rental Revenues under Operating Leases | DTE Energy’s minimum future rental revenues under operating leases for remaining periods as of December 31, 2023 are as follows:
| DTE Energy
| (In millions)
2024 | $ | 15 |
2025 | 15 |
2026 | 11 |
2027 | 10 |
2028 | 6 |
2029 and thereafter | 36 |
| $ | 93 |
Schedule of Property under Operating Leases | The following is a summary of property under operating leases for DTE Energy as of December 31:
| 2023 |  | 2022
| (In millions)
Gross property under operating leases | $ | 228 |  |  | $ | 282 |
Accumulated amortization of property under operating leases | $ | 118 |  |  | $ | 128 |
Components of Net Investment in Finance Leases | The components of DTE Energy’s net investment in finance leases for remaining periods as of December 31, 2023 are as follows:
| DTE Energy
| (In millions)
2024 | $ | 34 |  |  |
2025 | 34 |  |  |
2026 | 34 |  |  |
2027 | 34 |  |  |
2028 | 34 |  |  |
2029 and thereafter | 389 |  |  |
Total minimum future lease receipts | 559 |  |  |
Residual value of leased pipeline | 17 |  |  |
Less unearned income | 289 |  |  |
Net investment in finance lease | 287 |  |  |
Less current portion | 8 |  |  |
| $ | 279 |  |  |

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