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Schedule IV - Reinsurance | 12 Months Ended
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Dec. 31, 2021
Supplemental Schedule of Reinsurance Premiums for Insurance Companies [Abstract] |
Supplemental Schedule of Reinsurance Premiums for Insurance Companies | SCHEDULE IV MBIA INC. AND SUBSIDIARIES REINSURANCE Years Ended December 31, 2021, 2020 and 2019 (In millions)
Column A Insurance Premium Written |  | Column B Direct Amount |  |  | Column C Ceded to Others |  |  | Column D Assumed From Other Companies |  |  | Column E Net Amount |  |  | Column F Percentage of Amount Assumed to Net |
2021 |  | $ | 8 |  |  | $ | 2 |  |  | $ | — |  |  | $ | 6 |  |  |  | 0% |
2020 |  | $ | 1 |  |  | $ | 1 |  |  | $ | — |  |  | $ | — |  |  |  | 0% |
2019 |  | $ | 3 |  |  | $ | — |  |  | $ | — |  |  | $ | 3 |  |  |  | 0% |

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- Definition The entire disclosure for the supplemental schedule of reinsurance information. Reinsurance schedule includes, but is not limited to, the type of insurance, gross amount of premiums, premiums ceded to other entities, premiums assumed from other entities, net amount of premium revenue, and the percentage of the premiums assumed to net premium revenue. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Subsection 17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17) -URI http://asc.fasb.org/extlink&oid=120401096&loc=d3e574992-122915 + Details
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