v3.26.1
Consolidated Statements Of Changes In Shareholders' Equity - USD ($)
$ in Millions
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Retained Earnings (Deficit) [Member]
Accumulated Other Comprehensive Income (Loss) [Member]
Treasury Stock [Member]
Total Shareholders' Equity Of MBIA Inc. [Member]
Preferred Stock [Member]
Preferred Stock Of Subsidiary And Noncontrolling Interests [Member]
Balance (in common stock shares)   283,186,115              
Balance (in preferred stock shares)               1,315  
Total equity balance at Dec. 31, 2024   $ 283 $ 2,492 $ (1,591) $ (128) $ (3,145) $ (2,089)   $ 13
Balance (in treasury stock shares) at Dec. 31, 2024           (232,215,934)      
Balance (in preferred stock shares) at Dec. 31, 2024               1,315  
Share-based compensation     (32)            
Net income (loss) attributable to MBIA Inc. $ (62)     (62)          
Other comprehensive income (loss) 29       29        
Other           $ 28      
Other (in shares)           (599,556)      
Period change             (37)   0
Total equity balance at Mar. 31, 2025 $ (2,113) $ 283 2,460 (1,653) (99) $ (3,117) (2,126)   13
Balance (in treasury stock shares) at Mar. 31, 2025           (232,815,490)      
Balance (in common stock shares) at Mar. 31, 2025   283,186,115              
Balance (in common stock shares)   283,186,115              
Balance (in preferred stock shares)               1,315  
Balance (in common stock shares) 283,186,115 283,186,115              
Balance (in preferred stock shares) 0             1,315  
Total equity balance at Dec. 31, 2025 $ (2,230) $ 283 2,450 (1,768) (95) $ (3,107) (2,237)   7
Balance (in treasury stock shares) at Dec. 31, 2025 (232,675,865)         (232,675,865)      
Balance (in preferred stock shares) at Dec. 31, 2025 0             1,315  
Share-based compensation     (30)            
Net income (loss) attributable to MBIA Inc. $ (40)     (40)          
Other comprehensive income (loss) (8)       (8)        
Other           $ 32      
Other (in shares)           423,272      
Period change             (46)   (2)
Total equity balance at Mar. 31, 2026 $ (2,278) $ 283 $ 2,420 $ (1,808) $ (103) $ (3,075) $ (2,283)   $ 5
Balance (in treasury stock shares) at Mar. 31, 2026 (232,252,593)         (232,252,593)      
Balance (in common stock shares) at Mar. 31, 2026 283,186,115 283,186,115              
Balance (in common stock shares) 283,186,115 283,186,115              
Balance (in preferred stock shares) 0             1,315