v3.25.4

Retirement Benefits (Schedule of Expected Benefit Payments) (Details) $ in Millions | Dec. 31, 2025 USD ($)
--- | ---
DB Pension Plans |
Defined Benefit Plan Disclosure [Line Items] |
2026 | $ 164
2027 | 165
2028 | 164
2029 | 164
2030 | 164
2031-2035 | 801
DB Pension Plans | Consumers Energy Company |
Defined Benefit Plan Disclosure [Line Items] |
2026 | 154
2027 | 155
2028 | 154
2029 | 155
2030 | 154
2031-2035 | 756
DB SERP |
Defined Benefit Plan Disclosure [Line Items] |
2026 | 10
2027 | 10
2028 | 10
2029 | 9
2030 | 9
2031-2035 | 41
DB SERP | Consumers Energy Company |
Defined Benefit Plan Disclosure [Line Items] |
2026 | 7
2027 | 7
2028 | 7
2029 | 6
2030 | 6
2031-2035 | 29
OPEB Plan |
Defined Benefit Plan Disclosure [Line Items] |
2026 | 59
2027 | 61
2028 | 62
2029 | 62
2030 | 62
2031-2035 | 305
OPEB Plan | Consumers Energy Company |
Defined Benefit Plan Disclosure [Line Items] |
2026 | 57
2027 | 58
2028 | 59
2029 | 59
2030 | 60
2031-2035 | $ 292

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