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Retirement Benefits and Trusteed Assets (OPEB - Benefits related to Qualified and Nonqualified Pension Plans Expected to be paid in the Next Ten Years) (Details) - Other postretirement benefit plan $ in Millions | Dec. 31, 2023 USD ($)
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Defined Benefit Plan Disclosure [Line Items] |
2024 | $ 84
2025 | 88
2026 | 89
2027 | 91
2028 | 92
2029-2033 | 482
Total | 926
DTE Electric |
Defined Benefit Plan Disclosure [Line Items] |
2024 | 64
2025 | 67
2026 | 68
2027 | 70
2028 | 71
2029-2033 | 369
Total | $ 709

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