XML 102 R68.htm IDEA: XBRL DOCUMENT v3.22.4

Investments - Equity Method Investment Ownership (Details) - Investment funds - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Schedule of Equity Method Investments [Line Items]
Fair Value, Option, Fair Value Carrying Amount, Assets	$ 1,578	$ 3,039
Equity Method Investments	689	5,345
Ownership Percentage, One Hundred Percent [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	23	649
Ownership Percentage, Greater than Three Percent and Less than or Equal to Forty Nine Percent [Member]
Schedule of Equity Method Investments [Line Items]
Fair Value, Option, Fair Value Carrying Amount, Assets	1,576	2,873
Equity Method Investments	542	2,668
Ownership Percentage, Greater than or Equal to Fifty Percentage and Less than or Equal to Ninety Nine Percent [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	0	2,028
Ownership Percentage, Less than Three Percent [Member]
Schedule of Equity Method Investments [Line Items]
Fair Value, Option, Fair Value Carrying Amount, Assets	2	166
Equity Method Investments	$ 124	$ 0

X

- Definition

Fair Value, Option, Fair Value Carrying Amount, Assets

+ References

No definition available.

+ Details

Name:	ahl_FairValueOptionFairValueCarryingAmountAssets
Namespace Prefix:	ahl_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=109237563&loc=d3e33749-111570

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(10))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 25
-Subparagraph (a)
-URI https://asc.fasb.org/extlink&oid=126901519&loc=d3e8813-108599

+ Details

Name:	us-gaap_EquityMethodInvestments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- 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

Name:	us-gaap_ScheduleOfEquityMethodInvestmentsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_FairValueByAssetClassAxis=ahl_InvestmentFundsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentSecondaryCategorizationAxis=ahl_OwnershipPercentageOneHundredPercentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentSecondaryCategorizationAxis=ahl_OwnershipPercentageGreaterthanThreePercentandLessthanorEqualtoFortyNinePercentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentSecondaryCategorizationAxis=ahl_OwnershipPercentageGreaterthanorEqualtoFiftyPercentageandLessthanorEqualtoNinetyNinePercentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InvestmentSecondaryCategorizationAxis=ahl_OwnershipPercentageLessthanThreePercentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: