v3.26.1
CMS Energy Corporation Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)
shares in Millions, $ in Millions
Jun. 30, 2026
Dec. 31, 2025
Accounts receivable and accrued revenue, allowance $ 32 $ 27
Common Stock Shares Issued Not Disclosed true true
Common stock authorized (in shares) 700.0 350.0
Common stock outstanding (in shares) 313.6 306.4
Series C Preferred Stock Depositary Shares    
Preferred stock authorized (in shares) 9.2 9.2
Preferred stock outstanding (in shares) 9.2 9.2