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Reinsurance and Policy Provisions (Intercompany Reinsurance Agreements) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($)
AEL Re Vermont
Ceded Credit Risk [Line Items]
Risk charges	$ 2.8
AEL Re Bermuda
Ceded Credit Risk [Line Items]
Reinsurance liabilities, amount ceded	$ 3,800.0

X

- Definition

Reinsurance Liabilities, Amount Ceded

+ References

No definition available.

+ Details

Name:	ael_ReinsuranceLiabilitiesAmountCeded
Namespace Prefix:	ael_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Item represents a risk charge percentage that is applied to the oustanding loss carry forward (LCF) to determine the amount due at the end of each accounting period (quarter).

+ References

No definition available.

+ Details

Name:	ael_ReinsuranceRiskCharge
Namespace Prefix:	ael_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

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

X

- Details

Name:	us-gaap_CededCreditRiskAxis=ael_ReinsuranceAELReVermontMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CededCreditRiskAxis=ael_ReinsuranceAELReBermudaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: