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Contingencies And Commitments (Expected Remediation Cost By Year) (Details) $ in Millions | Sep. 30, 2020 USD ($)
--- | ---
Bay Harbor |
Site Contingency [Line Items] |
2020 | $ 1
2021 | 4
2022 | 4
2023 | 4
2024 | 4
2025 | 4
Gas Utility | Manufactured Gas Plant | Consumers Energy Company |
Site Contingency [Line Items] |
2020 | 1
2021 | 2
2022 | 8
2023 | 23
2024 | 10
2025 | $ 1

X
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