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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, 2018 | Dec. 31, 2017
--- | --- | ---
Insurance in Force |  | $ 128.1 | $ 154.9
Gross Par Amount |  | 69.8 | 87.0
U S [Member] |  |  |
Insurance in Force |  | 118.8 | 143.4
Non-United States [Member] |  |  |
Insurance in Force |  | 9.3 | 11.5
Global Public Finance [Member] |  |  |
Insurance in Force |  | 119.6 | 144.2
Gross Par Amount |  | 64.2 | 79.7
Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force |  | 111.6 | 134.0
Gross Par Amount |  | 57.9 | 71.9
Global Public Finance [Member] | Non-United States [Member] |  |  |
Insurance in Force |  | 8.0 | 10.2
Gross Par Amount |  | 6.3 | 7.8
Global Structured Finance [Member] |  |  |
Insurance in Force |  | 8.5 | 10.7
Gross Par Amount |  | 5.6 | 7.3
General Obligation [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force | [1] | 34.2 | 42.8
Gross Par Amount | [1] | 17.3 | 22.9
General Obligation - Lease [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force |  | 4.0 | 5.1
Gross Par Amount |  | 3.0 | 3.8
Municipal Utilities [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force |  | 14.2 | 17.7
Gross Par Amount |  | 9.5 | 11.8
Tax-Backed [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force |  | 24.0 | 26.5
Gross Par Amount |  | 11.2 | 12.4
Transportation [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force |  | 12.0 | 15.2
Gross Par Amount |  | 4.8 | 6.9
Transportation [Member] | Global Public Finance [Member] | Non-United States [Member] |  |  |
Insurance in Force |  | 3.0 | 4.5
Gross Par Amount |  | 2.5 | 3.6
Higher Education [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force |  | 2.5 | 3.2
Gross Par Amount |  | 1.7 | 2.1
Health Care [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force |  | 1.7 | 2.6
Gross Par Amount |  | 1.2 | 1.8
Military Housing [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force |  | 15.8 | 16.3
Gross Par Amount |  | 7.2 | 7.3
Investor-Owned Utilities [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force | [2] | 2.0 | 3.1
Gross Par Amount | [2] | 1.3 | 2.0
Municipal Housing [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force |  | 0.3 | 0.4
Gross Par Amount |  | 0.2 | 0.3
Other Public Finance [Member] | Global Public Finance [Member] | U S [Member] |  |  |
Insurance in Force | [3] | 0.9 | 1.1
Gross Par Amount | [3] | 0.5 | 0.6
Other Public Finance [Member] | Global Public Finance [Member] | Non-United States [Member] |  |  |
Insurance in Force | [4] | 0.1 | 0.2
Gross Par Amount | [4] | 0.1 | 0.1
International Utilities [Member] | Global Public Finance [Member] | Non-United States [Member] |  |  |
Insurance in Force |  | 1.4 | 1.7
Gross Par Amount |  | 1.2 | 1.4
Sovereign Related And Sub-Sovereign [Member] | Global Public Finance [Member] | Non-United States [Member] |  |  |
Insurance in Force | [5] | 3.5 | 3.8
Gross Par Amount | [5] | 2.5 | 2.7
Collateralized Debt Obligations [Member] | Global Structured Finance [Member] |  |  |
Insurance in Force | [6] | 0.5 | 0.5
Gross Par Amount | [6] | 0.4 | 0.4
Residential Mortgage Backed Securities [Member] | Global Structured Finance [Member] |  |  |
Insurance in Force |  | 3.4 | 4.7
Gross Par Amount |  | 2.5 | 3.6
Commercial Mortgage Backed Securities [Member] | Global Structured Finance [Member] |  |  |
Insurance in Force |  | 0.6 | 0.7
Gross Par Amount |  | 0.3 | 0.3
Consumer Asset Backed [Member] | Global Structured Finance [Member] |  |  |
Insurance in Force |  | 0.5 | 0.9
Gross Par Amount |  | 0.4 | 0.7
Corporate Asset Backed [Member] | Global Structured Finance [Member] |  |  |
Insurance in Force | [7] | 3.5 | 3.9
Gross Par Amount | [7] | $ 2.0 | $ 2.3
[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, 2018, includes structured insurance securitizations of $2.2 billion and $1.0 billion of insurance in force and gross par amount, respectively. As of December 31, 2017, includes structured insurance securitizations of $2.3 billion and $1.1 billion of insurance in force and gross par amount, respectively.

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