Name:	aig_ApproximatePercentageOfEquityOwnershipOfEntityAllegedlyReceivedByDepartmentOfTreasury
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Represents the increase or decrease during the period in the estimated costs as of the balance sheet date of settling insured claims and costs incurred in the claims settlement process for claims that have not yet been submitted to the insurance company for reimbursement.

No definition available.

Name:	aig_IncreaseDecreaseInLiabilityForUnpaidClaimsAndClaimsAdjustmentExpenseIncurredButNotReportedIBNRClaims
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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Represents the amount of civil penalty which the entity has agreed to pay as per the consent order passed under the multi-state examination of certain accident and health products, including travel products.

No definition available.

Name:	aig_LossContingencyCivilPenaltyPayable
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Data Type:	xbrli:monetaryItemType
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The multiple of damages sustained which the complaint seeks.

No definition available.

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The number of cases that have proceeded and settled.

No definition available.

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Data Type:	xbrli:integerItemType
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The number of funds that are plaintiffs in similar actions, which have not been consolidated in this litigation.

No definition available.

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Data Type:	xbrli:integerItemType
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Number of states participating in multi-state examination of certain accident and health products issued by a subsidiary.

No definition available.

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Data Type:	xbrli:integerItemType
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Represents payment released from the workers compensation escrow accounts in satisfaction of fines, penalties and premium tax obligations, which occurred as a result of the regulatory settlement relating to workers compensation premium reporting issues .

No definition available.

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Data Type:	xbrli:monetaryItemType
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The portion of payments made for a loss contingency which represented fines and penalties.

No definition available.

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Data Type:	xbrli:monetaryItemType
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Represents the amount of civil penalty paid by entity as per the consent order passed under the multi-state examination of certain accident and health products, including travel products.

No definition available.

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Data Type:	xbrli:monetaryItemType
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The number of jurisdictions which agreed to the settlement agreement.

No definition available.

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Data Type:	xbrli:integerItemType
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Period Type:	instant

Represents the number of shareholders who have opted into the class.

No definition available.

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Data Type:	xbrli:integerItemType
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Amount of judgment or settlement awarded to (against) the entity in respect of litigation.

No definition available.

Name:	us-gaap_LitigationSettlementAmount
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Data Type:	xbrli:monetaryItemType
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The value (monetary amount) of the award the plaintiff seeks in the legal matter.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
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-Topic 450
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-Section 50
-Paragraph 4
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-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

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- References

No definition available.

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Data Type:	xbrli:stringItemType
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The total number of new claims filed pertaining to a loss contingency during the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

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Data Type:	xbrli:integerItemType
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Number of plaintiffs that have filed claims pertaining to a loss contingency.

No definition available.

Name:	us-gaap_LossContingencyNumberOfPlaintiffs
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Data Type:	xbrli:integerItemType
Balance Type:	na
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Number of pending claims pertaining to a loss contingency.

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The amount of cash paid for the settlement of litigation or for other legal issues during the period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3536-108585

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

Name:	dei_LegalEntityAxis=aig_ChartisUSMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_LitigationCaseAxis=aig_Consolidated2008SecuritiesLitigationMember
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Data Type:	na
Balance Type:
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Name:	us-gaap_LitigationCaseAxis=aig_ERISALitigationMember
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Data Type:	na
Balance Type:
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Name:	us-gaap_LitigationCaseAxis=aig_StarrInternationalLitigationMember
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Data Type:	na
Balance Type:
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Data Type:	na
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Name:	us-gaap_LitigationCaseAxis=aig_CaremarkMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	us-gaap_LitigationCaseAxis=aig_SubpoenasFromNewYorkDepartmentOfFinancialServicesMember
Namespace Prefix:
Data Type:	na
Balance Type:
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Name:	dei_LegalEntityAxis=aig_MetLifeIncMember
Namespace Prefix:
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