- Definition

The maximum amount of statutory capital that may be paid out as dividends without prior approval from a regulatory agency.

+ References

No definition available.

+ Details

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- Definition

The maximum percentage of statutory capital that may be paid out as dividends without prior approval from a regulatory agency.

+ References

No definition available.

+ Details

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- Definition

The maximum percentage of statutory capital and surplus that may be paid out as dividends without prior approval from a regulatory agency.

+ References

No definition available.

+ Details

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- Definition

Dividend Payments Restrictions Schedule, Statutory Surplus

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Regulatory Capital Resources Under Solvency II, Own Funds

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Statutory Accounting Practices, Statutory Amount Available for Dividend Payments, Deficit

+ References

No definition available.

+ Details

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- Definition

Statutory Accounting Practices, Statutory Amount Available for Dividend Payments without Regulatory Approval, Available in Next Fiscal Quarter

+ References

No definition available.

+ Details

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Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- Definition

Statutory Accounting Practices, Statutory Threshold for Dividend Payments, Percentage of Adjusted Net Investment Income

+ References

No definition available.

+ Details

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- Definition

Statutory Accounting Practices, Statutory Threshold for Dividend Payments, Percentage of Policyholder' Surplus

+ References

No definition available.

+ Details

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Data Type:	dtr-types:percentItemType
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- Definition

Unencumbered Assets which are not held in trust for the benefit of cedants.

+ References

No definition available.

+ Details

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Namespace Prefix:	ago_
Data Type:	xbrli:monetaryItemType
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Period Type:	instant

- 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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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of dividends available for payment after computation of statutory restrictions on capital surplus.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of dividends that can be declared or paid without approval of regulatory agency.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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- Details

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- Details

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- Details

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- Details

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Insurance Company Regulatory Requirements - Narrative (Details) € in Millions, £ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2023 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 GBP (£)	Dec. 31, 2022 USD ($)	Dec. 31, 2022 EUR (€)	Dec. 31, 2021 GBP (£)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 EUR (€)
AGUK
Statutory Accounting Practices [Line Items]
Own Funds				£ 592	$ 716		£ 591	$ 800
AGE
Statutory Accounting Practices [Line Items]
Own Funds					56	€ 52		$ 66	€ 58
Assured Guaranty Municipal Corp And Municipal Assurance Corp \| NEW YORK
Statutory Accounting Practices [Line Items]
Threshold for dividend payments as a percentage of policyholder surplus	10.00%
Threshold for dividend payments, percentage of adjusted net investment income	100.00%
Assured Guaranty Municipal Corp \| NEW YORK \| Forecast
Statutory Accounting Practices [Line Items]
Amount available for distribution, current year		$ 209
Amount available for distribution, next fiscal quarter			$ 40
AGC \| Maryland
Statutory Accounting Practices [Line Items]
Threshold for dividend payments as a percentage of policyholder surplus	10.00%
Threshold for dividend payments, percentage of adjusted net investment income	100.00%
AGC \| Maryland \| Forecast
Statutory Accounting Practices [Line Items]
Amount available for distribution, next fiscal quarter			$ 20
AGC \| Maryland \| AGC
Statutory Accounting Practices [Line Items]
Amount available for distribution, current year					102
AG Re \| Bermuda
Statutory Accounting Practices [Line Items]
Amount available for distribution, current year					210
Dividend payment restrictions, percentage of statutory capital	15.00%
Dividend restrictions on statutory capital and surplus (as a percent)	25.00%
Capital distributions	$ 129
Statutory surplus					210
Unencumbered assets					138
Statutory amount available for dividend payments, deficit					(19)
AGRO \| Bermuda
Statutory Accounting Practices [Line Items]
Amount available for distribution, current year					98
Capital distributions	$ 21
Statutory surplus					98
Unencumbered assets					374
Statutory amount available for dividend payments					$ (253)