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Commitments and Contingencies - The Clean Air Act (Details) - Clean Air Act related to Regional Haze | Dec. 31, 2021 T | Dec. 31, 1999 state
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Public Utilities, General Disclosures [Line Items] |  |
Number of states to address regional haze | state |  | 50
Potential to emit tons per year of visibility impairing pollution, maximum (in tons) | T | 250 |

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