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Asset Retirement Obligations (Tables) | 9 Months Ended
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Sep. 30, 2022
Asset Retirement Obligations [Line Items] |
Schedule of Change in Asset Retirement Obligation | Presented in the following table are the changes in CMS Energy’s and Consumers’ ARO liabilities:
In Millions
Company and ARO Description | ARO Liability 12/31/2021 | Incurred | Settled | Accretion | Cash Flow Revisions | ARO Liability 9/30/2022
CMS Energy, including Consumers |  |  |  |  |  |  |  |
Consumers |  | $ | 605 |  |  | $ | — |  |  | $ | (30) |  |  | $ | 19 |  |  | $ | 129 |  |  | $ | 723 |
Renewable generation assets |  | 23 |  |  | — |  |  | — |  |  | 1 |  |  | — |  |  | 24 |
Total CMS Energy |  | $ | 628 |  |  | $ | — |  |  | $ | (30) |  |  | $ | 20 |  |  | $ | 129 |  |  | $ | 747 |
Consumers |  |  |  |  |  |  |  |  |  |  |  |
Coal ash disposal areas |  | $ | 157 |  |  | $ | — |  |  | $ | (17) |  |  | $ | 4 |  |  | $ | 129 |  |  | $ | 273 |
Gas distribution cut, purge, and cap |  | 282 |  |  | — |  |  | (10) |  |  | 11 |  |  | — |  |  | 283 |
Asbestos abatement |  | 38 |  |  | — |  |  | (1) |  |  | 1 |  |  | — |  |  | 38 |
Renewable generation assets |  | 93 |  |  | — |  |  | — |  |  | 2 |  |  | — |  |  | 95 |
Gas wells plug and abandon |  | 35 |  |  | — |  |  | (2) |  |  | 1 |  |  | — |  |  | 34 |
Total Consumers |  | $ | 605 |  |  | $ | — |  |  | $ | (30) |  |  | $ | 19 |  |  | $ | 129 |  |  | $ | 723 |
Consumers Energy Company |
Asset Retirement Obligations [Line Items] |
Schedule of Change in Asset Retirement Obligation | Presented in the following table are the changes in CMS Energy’s and Consumers’ ARO liabilities:
In Millions
Company and ARO Description | ARO Liability 12/31/2021 | Incurred | Settled | Accretion | Cash Flow Revisions | ARO Liability 9/30/2022
CMS Energy, including Consumers |  |  |  |  |  |  |  |
Consumers |  | $ | 605 |  |  | $ | — |  |  | $ | (30) |  |  | $ | 19 |  |  | $ | 129 |  |  | $ | 723 |
Renewable generation assets |  | 23 |  |  | — |  |  | — |  |  | 1 |  |  | — |  |  | 24 |
Total CMS Energy |  | $ | 628 |  |  | $ | — |  |  | $ | (30) |  |  | $ | 20 |  |  | $ | 129 |  |  | $ | 747 |
Consumers |  |  |  |  |  |  |  |  |  |  |  |
Coal ash disposal areas |  | $ | 157 |  |  | $ | — |  |  | $ | (17) |  |  | $ | 4 |  |  | $ | 129 |  |  | $ | 273 |
Gas distribution cut, purge, and cap |  | 282 |  |  | — |  |  | (10) |  |  | 11 |  |  | — |  |  | 283 |
Asbestos abatement |  | 38 |  |  | — |  |  | (1) |  |  | 1 |  |  | — |  |  | 38 |
Renewable generation assets |  | 93 |  |  | — |  |  | — |  |  | 2 |  |  | — |  |  | 95 |
Gas wells plug and abandon |  | 35 |  |  | — |  |  | (2) |  |  | 1 |  |  | — |  |  | 34 |
Total Consumers |  | $ | 605 |  |  | $ | — |  |  | $ | (30) |  |  | $ | 19 |  |  | $ | 129 |  |  | $ | 723 |

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- Definition Asset Retirement Obligations [Line Items] + References No definition available. + Details
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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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