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Insurance In Force (Schedule Of Insurance In Force By Type Of Bond, Excluding Transactions Guaranteed By MBIA Corp. On Behalf Of Various Investment Management Services And Other Affiliated Companies) (Detail) - USD ($) $ in Billions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Insurance in Force |  | $ 68.0 | $ 78.5
Gross Par Amount |  | 35.1 | 41.7
U S [Member] |  |  |
Insurance in Force |  | 65.1 | 73.7
Non-United States [Member] |  |  |
Insurance in Force |  | 2.9 | 4.8
Transportation [Member] | Non-United States [Member] |  |  |
Insurance in Force |  | 0.5 | 1.2
Gross Par Amount |  | 0.4 | 1.0
Other Public Finance [Member] | Non-United States [Member] |  |  |
Insurance in Force | [1] | 0.1 | 0.1
Gross Par Amount | [1] | 0.1 | 0.1
International Utilities [Member] | Non-United States [Member] |  |  |
Insurance in Force |  | 0.0 | 0.5
Gross Par Amount |  | 0.0 | 0.5
Sovereign Related And Sub-Sovereign [Member] | Non-United States [Member] |  |  |
Insurance in Force | [2] | 1.5 | 2.0
Gross Par Amount | [2] | 1.2 | 1.6
Global Public Finance [Member] |  |  |
Insurance in Force |  | 65.5 | 75.5
Gross Par Amount |  | 33.4 | 39.7
Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force |  | 63.4 | 71.7
Gross Par Amount |  | 31.7 | 36.5
Global Public Finance [Member] | Non-United States [Member] |  |  |
Insurance in Force |  | 2.1 | 3.8
Gross Par Amount |  | 1.7 | 3.2
Global Public Finance [Member] | General Obligation [Member] | U S [Member] |  |  |
Insurance in Force | [3] | 19.1 | 22.1
Gross Par Amount | [3] | 9.1 | 10.7
Global Public Finance [Member] | General Obligation—Lease [Member] | U S [Member] |  |  |
Insurance in Force |  | 1.3 | 1.7
Gross Par Amount |  | 1.0 | 1.2
Global Public Finance [Member] | Municipal Utilities [Member] | U S [Member] |  |  |
Insurance in Force |  | 7.6 | 8.7
Gross Par Amount |  | 5.2 | 6.0
Global Public Finance [Member] | Tax-Backed [Member] | U S [Member] |  |  |
Insurance in Force |  | 12.2 | 14.2
Gross Par Amount |  | 5.6 | 6.8
Global Public Finance [Member] | Transportation [Member] | U S [Member] |  |  |
Insurance in Force |  | 6.9 | 7.7
Gross Par Amount |  | 2.2 | 2.6
Global Public Finance [Member] | Higher Education [Member] | U S [Member] |  |  |
Insurance in Force |  | 1.1 | 1.3
Gross Par Amount |  | 0.8 | 1.0
Global Public Finance [Member] | Health Care [Member] | U S [Member] |  |  |
Insurance in Force |  | 0.8 | 1.0
Gross Par Amount |  | 0.6 | 0.7
Global Public Finance [Member] | Military Housing [Member] | U S [Member] |  |  |
Insurance in Force |  | 13.8 | 14.3
Gross Par Amount |  | 6.8 | 6.9
Global Public Finance [Member] | Investor-Owned Utilities [Member] | U S [Member] |  |  |
Insurance in Force | [4] | 0.5 | 0.6
Gross Par Amount | [4] | 0.3 | 0.5
Global Public Finance [Member] | Other Public Finance [Member] | U S [Member] |  |  |
Insurance in Force | [5] | 0.1 | 0.1
Gross Par Amount | [5] | 0.1 | 0.1
Global Structured Finance [Member] |  |  |
Insurance in Force |  | 2.5 | 3.0
Gross Par Amount |  | 1.7 | 2.0
Global Structured Finance [Member] | Collateralized Debt Obligations [Member] |  |  |
Insurance in Force |  | 0.2 | 0.3
Gross Par Amount |  | 0.2 | 0.2
Global Structured Finance [Member] | Residential Mortgage Backed Securities [Member] |  |  |
Insurance in Force |  | 1.2 | 1.5
Gross Par Amount |  | 0.8 | 1.0
Global Structured Finance [Member] | Commercial Mortgage Backed Securities [Member] |  |  |
Insurance in Force |  | 0.4 | 0.4
Gross Par Amount |  | 0.2 | 0.2
Global Structured Finance [Member] | Consumer Asset Backed [Member] |  |  |
Insurance in Force |  | 0.2 | 0.2
Gross Par Amount |  | 0.1 | 0.2
Global Structured Finance [Member] | Corporate Asset Backed [Member] |  |  |
Insurance in Force |  | 0.5 | 0.6
Gross Par Amount |  | $ 0.4 | $ 0.4
[1] | Includes municipal owned entities backed by sponsoring local government and tax backed transactions.
[2] | Includes regions, departments or their equivalent in each jurisdiction as well as sovereign owned entities that are supported by a sovereign state, region or department.
[3] | Includes general obligation unlimited and limited (property) tax bonds, general fund obligation bonds and pension obligation bonds of states, cities, counties, schools and special districts.
[4] | Includes investor owned utilities, industrial development and pollution control revenue bonds.
[5] | Includes stadium related financings, municipal housing and certain non-profit enterprises.

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