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Outstanding Exposure - Outstanding GO and PBA Bonds (Details) - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Financial Guaranty Insurance BIG Transaction Loss Summary
Net	$ 233,379	$ 236,392
Puerto Rico
Financial Guaranty Insurance BIG Transaction Loss Summary
Net	2,237	3,572
Puerto Rico Exposures Subject to a Plan or Support Agreement | Puerto Rico
Financial Guaranty Insurance BIG Transaction Loss Summary
Net	1,308	2,643
Puerto Rico Exposures Subject to a Plan or Support Agreement | GO/PBA PSA | Puerto Rico
Financial Guaranty Insurance BIG Transaction Loss Summary
Net	52	1,219
Puerto Rico Exposures Subject to a Plan or Support Agreement | GO | Puerto Rico
Financial Guaranty Insurance BIG Transaction Loss Summary
Net	47	1,097
Puerto Rico Exposures Subject to a Plan or Support Agreement | PBA | Puerto Rico
Financial Guaranty Insurance BIG Transaction Loss Summary
Net	5	$ 122
Direct | Puerto Rico Exposures Subject to a Plan or Support Agreement | GO/PBA PSA | Puerto Rico
Financial Guaranty Insurance BIG Transaction Loss Summary
Net	41
Direct | Puerto Rico Exposures Subject to a Plan or Support Agreement | GO | Puerto Rico
Financial Guaranty Insurance BIG Transaction Loss Summary
Net	36
Direct | Puerto Rico Exposures Subject to a Plan or Support Agreement | PBA | Puerto Rico
Financial Guaranty Insurance BIG Transaction Loss Summary
Net	5
Second-to-Pay | Puerto Rico Exposures Subject to a Plan or Support Agreement | GO/PBA PSA | Puerto Rico
Financial Guaranty Insurance BIG Transaction Loss Summary
Net	10
Second-to-Pay | Puerto Rico Exposures Subject to a Plan or Support Agreement | GO | Puerto Rico
Financial Guaranty Insurance BIG Transaction Loss Summary
Net	10
Second-to-Pay | Puerto Rico Exposures Subject to a Plan or Support Agreement | PBA | Puerto Rico
Financial Guaranty Insurance BIG Transaction Loss Summary
Net	0
Assumed | Puerto Rico Exposures Subject to a Plan or Support Agreement | GO/PBA PSA | Puerto Rico
Financial Guaranty Insurance BIG Transaction Loss Summary
Net	1
Assumed | Puerto Rico Exposures Subject to a Plan or Support Agreement | GO | Puerto Rico
Financial Guaranty Insurance BIG Transaction Loss Summary
Net	1
Assumed | Puerto Rico Exposures Subject to a Plan or Support Agreement | PBA | Puerto Rico
Financial Guaranty Insurance BIG Transaction Loss Summary
Net	$ 0

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- Definition

Represents the outstanding principal amounts of the underlying insured obligations for financial guaranty contracts, after netting out ceded contracts.

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No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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