XML 148 R129.htm IDEA: XBRL DOCUMENT v3.22.1

Post-retirement benefit plans - Schedule of pension plan participants (Details)	Dec. 31, 2021 employee
Defined Benefit Plan, Plan Assets, Allocation [Line Items]
Number of participants at end of period	220
Actives
Defined Benefit Plan, Plan Assets, Allocation [Line Items]
Number of participants at end of period	88
Frozen actives
Defined Benefit Plan, Plan Assets, Allocation [Line Items]
Number of participants at end of period	1
Deferreds
Defined Benefit Plan, Plan Assets, Allocation [Line Items]
Number of participants at end of period	93
Pensioners
Defined Benefit Plan, Plan Assets, Allocation [Line Items]
Number of participants at end of period	38

X

- Definition

Defined Benefit Plan, Number of Employees

+ References

No definition available.

+ Details

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Namespace Prefix:	aer_
Data Type:	xbrli:integerItemType
Balance Type:	na
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

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

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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	aer_PensionPlanParticipantAxis=aer_FrozenActivesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	aer_PensionPlanParticipantAxis=aer_DeferredsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	aer_PensionPlanParticipantAxis=aer_PensionersMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: