Consolidated Statements Of Changes In Shareholders' Equity - USD ($) |
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 And Non Controlling Interest Held For Sale [Member] |
|---|---|---|---|---|---|---|---|---|---|
| Total equity balance at Dec. 31, 2021 | $ 283,000,000 | $ 2,931,000,000 | $ (458,000,000) | $ 100,000,000 | $ (3,169,000,000) | $ (313,000,000) | $ 13,000,000 | ||
| Balance (in common stock shares) at Dec. 31, 2021 | 283,186,115 | ||||||||
| Balance (in treasury stock shares) at Dec. 31, 2021 | (228,630,003) | ||||||||
| Net income (loss) attributable to MBIA Inc. | $ (73,000,000) | (73,000,000) | |||||||
| Other comprehensive income (loss) | (182,000,000) | (182,000,000) | |||||||
| Share-based compensation (in shares) | 300,888 | ||||||||
| Share-based compensation | $ 15,000,000 | ||||||||
| Period change | (12,000,000) | (252,000,000) | 0 | ||||||
| Total equity balance at Mar. 31, 2022 | (552,000,000) | 2,919,000,000 | (531,000,000) | (82,000,000) | $ (3,154,000,000) | (565,000,000) | 13,000,000 | ||
| Balance (in treasury stock shares) at Mar. 31, 2022 | (228,329,115) | ||||||||
| Balance (in preferred stock shares) at Mar. 31, 2022 | 1,315 | ||||||||
| Total equity balance at Dec. 31, 2022 | $ (876,000,000) | $ 283,000,000 | 2,925,000,000 | (653,000,000) | (283,000,000) | $ (3,154,000,000) | (882,000,000) | 6,000,000 | |
| Balance (in common stock shares) at Dec. 31, 2022 | 283,186,115 | 283,186,115 | |||||||
| Balance (in treasury stock shares) at Dec. 31, 2022 | (228,333,444) | (228,333,444) | |||||||
| Net income (loss) attributable to MBIA Inc. | $ (93,000,000) | (93,000,000) | |||||||
| Other comprehensive income (loss) | 62,000,000 | 62,000,000 | |||||||
| Share-based compensation (in shares) | 111,803 | ||||||||
| Share-based compensation | $ 11,000,000 | ||||||||
| Period change | (10,000,000) | (30,000,000) | 7,000,000 | ||||||
| Total equity balance at Mar. 31, 2023 | $ (899,000,000) | $ 2,915,000,000 | $ (746,000,000) | $ (221,000,000) | $ (3,143,000,000) | $ (912,000,000) | $ 13,000,000 | ||
| Balance (in treasury stock shares) at Mar. 31, 2023 | (228,221,641) | (228,221,641) | |||||||
| Balance (in preferred stock shares) at Mar. 31, 2023 | 0 | 1,315 |
| X | ||||||||||
- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount after tax of other comprehensive income (loss) attributable to parent entity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number, after forfeiture, of shares or units issued under share-based payment arrangement. Excludes shares or units issued under employee stock ownership plan (ESOP). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Value, after forfeiture, of shares issued under share-based payment arrangement. Excludes employee stock ownership plan (ESOP). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of stockholders' equity (deficit), net of receivables from officers, directors, owners, and affiliates of the entity, attributable to both the parent and noncontrolling interests. Amount excludes temporary equity. Alternate caption for the concept is permanent equity. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The increase (decrease) in stockholders' equity during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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