v3.26.1
Consolidated Statements Of Operations - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Revenues:        
Scheduled premiums earned $ 6 $ 7 $ 12 $ 14
Refunding premiums earned 1 0 1 1
Net realized investment gains (losses)     (0) (6)
Net gains (losses) on financial instruments at fair value and foreign exchange 3 (2) 3 (17)
Total revenues 27 [1] 23 [2] 51 [3] 37 [4]
Expenses:        
Losses and loss adjustment 9 8 6 16
Interest 48 48 95 98
Total expenses 70 79 135 155
Income (loss) from continuing operations before income taxes (43) (56) (84) (118)
Provision (benefit) for income taxes 0 0 0 0
Income (loss) from continuing operations (43) (56) (84) (118)
Income (loss) from discontinued operations, net of income taxes 0 0 (1) 0
Net income (loss) (43) (56) (85) (118)
Less: Net income (loss) attributable to noncontrolling interests 3 0 1 0
Net income (loss) attributable to MBIA Inc. $ (46) $ (56) $ (86) $ (118)
Net income (loss) per common share attributable to MBIA Inc. - basic and diluted        
Continuing operations - basic $ (0.91) $ (1.12) $ (1.7) $ (2.4)
Continuing operations - diluted (0.91) (1.12) (1.7) (2.4)
Discontinued operations - basic 0 0 (0.01) 0
Discontinued operations - diluted 0 0 (0.01) 0
Net income (loss) per common share attributable to MBIA Inc. - basic (0.91) (1.12) (1.71) (2.4)
Net income (loss) per common share attributable to MBIA Inc. - diluted $ (0.91) $ (1.12) $ (1.71) $ (2.4)
Weighted average number of common shares outstanding:        
Basic [5] 50,197,412 49,543,258 49,997,922 48,952,068
Diluted [5] 50,197,412 49,543,258 49,997,922 48,952,068
Non Variable Interest Entity [Member]        
Revenues:        
Premiums earned (net of ceded premiums of $-, $-, $-, and $-) $ 7 $ 7 $ 13 $ 15
Net investment income 17 19 35 37
Net realized investment gains (losses) 0 (1) 0 (6)
Net gains (losses) on financial instruments at fair value and foreign exchange 3 (2) 3 (17)
Fees and reimbursements 0 0 1 1
Other net realized gains (losses) 0 0 (1) 0
Expenses:        
Losses and loss adjustment 9 8 6 16
Amortization of deferred acquisition costs 1 1 2 2
Operating 19 18 35 34
Interest 48 48 95 98
Variable Interest Entity, Primary Beneficiary [Member]        
Revenues:        
Other net realized gains (losses) 0 0 0 7
Expenses:        
Operating (8) 3 (4) 4
Interest $ 1 $ 1 $ 1 $ 1
[1] Includes net investment income of $15 million, $5 million, $3 million, and ($6) million for the U.S. Public Finance, Corporate, International and Structured Finance, and Eliminations segments, respectively.
[2] Includes net investment income of $15 million, $6 million, $3 million, and ($5) million for the U.S. Public Finance, Corporate, International and Structured Finance, and Eliminations segments, respectively.
[3] Includes net investment income of $30 million, $11 million, $6 million, and ($12) million for the U.S. Public Finance, Corporate, International and Structured Finance, and Eliminations segments, respectively.
[4] Includes net investment income of $30 million, $13 million, $6 million, and ($12) million for the U.S. Public Finance, Corporate, International and Structured Finance, and Eliminations segments, respectively.
[5] Includes approximately 1 million of participating securities that met the service condition and were eligible to receive nonforfeitable dividends or dividend equivalents for the three and six months ended June 30, 2026 and 2025.