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CMS Energy Corporation Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Accounts receivable and accrued revenue, allowance | $ 23 | $ 21
Common stock authorized (in shares) | 350,000,000.0 | 350,000,000.0
Common stock outstanding (in shares) | 298,800,000 | 294,400,000
Preferred stock authorized (in shares) | 10,000,000 |
Series C Preferred Stock Depositary Shares |  |
Preferred stock authorized (in shares) | 9,200,000 | 9,200,000
Preferred stock outstanding (in shares) | 9,200,000 | 9,200,000

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