Basis of Presentation [Line Items]

No definition available.

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- Definition

Percent Of Ownership Interest Permitted To Be Sold After Second Anniversary

+ References

No definition available.

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- Definition

Percent Of Ownership Interest Permitted To Be Sold After Third Anniversary

+ References

No definition available.

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- Definition

Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests).

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- Definition

The equity interest of noncontrolling shareholders, partners or other equity holders in consolidated entity.

+ References

No definition available.

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- Definition

The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

+ References

No definition available.

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- Definition

The number of countries in which the entity operates as of balance sheet date.

+ References

No definition available.

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- Definition

The cash inflow associated with the deconsolidation of a previously consolidated subsidiary or the sale of investment in consolidated subsidiaries (generally greater than 50 percent).

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- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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- Definition

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Basis of Presentation (Details) £ in Millions, $ in Millions			1 Months Ended	3 Months Ended
	Apr. 08, 2024 GBP (£)	Apr. 08, 2024 USD ($)	Nov. 30, 2021	Mar. 31, 2024 USD ($) country shares
Basis of Presentation Information
Number of countries in which the entity operates \| country				190
Assets held-for-sale \| AIG Life \| Subsequent event
Basis of Presentation Information
Cash consideration for divestiture of business	£ 453	$ 569.0
Corebridge Common Stock \| CoreBridge \| Total AIG Shareholders' Equity
Basis of Presentation Information
Decrease in shareholders' equity				$ 83.0
CoreBridge \| Corebridge Common Stock
Basis of Presentation Information
Total number of warrants repurchased (in shares) \| shares				9,500,000
Aggregate purchase price of repurchased shares				$ 243.0
Corebridge Financial Inc
Basis of Presentation Information
Ownership (as a percent)				52.70%
Corebridge Financial Inc \| Blackstone
Basis of Presentation Information
Ownership percentage by noncontrolling owners				10.10%
Percent of ownership interest permitted to be sold after second anniversary			67.00%
Percent of ownership interest permitted to be sold after third anniversary			75.00%