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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, 2019 | Dec. 31, 2018
--- | --- | ---
Insurance in Force |  | $ 107.5 | $ 128.1
Gross Par Amount |  | 58.9 | 69.8
U S [Member] |  |  |
Insurance in Force |  | 99.4 | 118.8
Non-United States [Member] |  |  |
Insurance in Force |  | 8.1 | 9.3
Global Public Finance [Member] |  |  |
Insurance in Force |  | 100.7 | 119.6
Gross Par Amount |  | 54.6 | 64.2
Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force |  | 93.7 | 111.6
Gross Par Amount |  | 48.9 | 57.9
Global Public Finance [Member] | Non-United States [Member] |  |  |
Insurance in Force |  | 7.0 | 8.0
Gross Par Amount |  | 5.7 | 6.3
Global Structured Finance [Member] |  |  |
Insurance in Force |  | 6.8 | 8.5
Gross Par Amount |  | 4.3 | 5.6
General Obligation [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force | [1] | 29.1 | 34.2
Gross Par Amount | [1] | 14.3 | 17.3
General Obligation - Lease [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force |  | 3.1 | 4.0
Gross Par Amount |  | 2.3 | 3.0
Municipal Utilities [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force |  | 12.0 | 14.2
Gross Par Amount |  | 8.1 | 9.5
Tax-Backed [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force |  | 17.7 | 24.0
Gross Par Amount |  | 9.2 | 11.2
Transportation [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force |  | 10.6 | 12.0
Gross Par Amount |  | 3.9 | 4.8
Transportation [Member] | Global Public Finance [Member] | Non-United States [Member] |  |  |
Insurance in Force |  | 2.7 | 3.0
Gross Par Amount |  | 2.3 | 2.5
Higher Education [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force |  | 2.2 | 2.5
Gross Par Amount |  | 1.5 | 1.7
Health Care [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force |  | 1.4 | 1.7
Gross Par Amount |  | 1.0 | 1.2
Military Housing [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force |  | 15.2 | 15.8
Gross Par Amount |  | 7.1 | 7.2
Investor-Owned Utilities [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force | [2] | 1.4 | 2.0
Gross Par Amount | [2] | 0.9 | 1.3
Municipal Housing [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force |  | 0.2 | 0.3
Gross Par Amount |  | 0.1 | 0.2
Other Public Finance [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force | [3] | 0.8 | 0.9
Gross Par Amount | [3] | 0.5 | 0.5
Other Public Finance [Member] | Global Public Finance [Member] | Non-United States [Member] |  |  |
Insurance in Force | [4] | 0.2 | 0.1
Gross Par Amount | [4] | 0.1 | 0.1
International Utilities [Member] | Global Public Finance [Member] | Non-United States [Member] |  |  |
Insurance in Force |  | 1.1 | 1.4
Gross Par Amount |  | 1.0 | 1.2
Sovereign Related And Sub-Sovereign [Member] | Global Public Finance [Member] | Non-United States [Member] |  |  |
Insurance in Force | [5] | 3.0 | 3.5
Gross Par Amount | [5] | 2.3 | 2.5
Collateralized Debt Obligations [Member] | Global Structured Finance [Member] |  |  |
Insurance in Force | [6] | 0.4 | 0.5
Gross Par Amount | [6] | 0.3 | 0.4
Residential Mortgage Backed Securities [Member] | Global Structured Finance [Member] |  |  |
Insurance in Force |  | 2.5 | 3.4
Gross Par Amount |  | 1.8 | 2.5
Commercial Mortgage Backed Securities [Member] | Global Structured Finance [Member] |  |  |
Insurance in Force |  | 0.5 | 0.6
Gross Par Amount |  | 0.2 | 0.3
Consumer Asset Backed [Member] | Global Structured Finance [Member] |  |  |
Insurance in Force |  | 0.4 | 0.5
Gross Par Amount |  | 0.3 | 0.4
Corporate Asset Backed [Member] | Global Structured Finance [Member] |  |  |
Insurance in Force | [7] | 3.0 | 3.5
Gross Par Amount | [7] | $ 1.7 | $ 2.0
[1] | 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.
[2] | Includes investor owned utilities, industrial development and pollution control revenue bonds.
[3] | Includes certain non-profit enterprises, stadium related financing and student loans.
[4] | Includes municipal owned entities backed by sponsoring local government and tax backed transactions.
[5] | 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.
[6] | Includes a transaction (represented by structured pools of CRE assets) that does not include typical CDO structuring characteristics, such as tranched credit risk, cash flow waterfalls, or interest and over-collateralization coverage tests.
[7] | As of December 31, 2019, includes structured insurance securitizations of $2.1 billion and $1.0 billion of insurance in force and gross par amount, respectively. As of December 31, 2018, includes structured insurance securitizations of $2.2 billion and $1.0 billion of insurance in force and gross par amount, respectively.

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