Name:	aexc_Averageinterestrateloansandleasesreceivablerelatedparties
Namespace Prefix:	aexc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the amount of interest expense to affiliates as a percentage of the average long-term debt with affiliates balance during the period.

No definition available.

Name:	aexc_Averageinterestratelongtermdebttoaffiliates
Namespace Prefix:	aexc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Represents the amount of interest expense to affiliates as a percentage of the average short-term debt with affiliates balance during the period.

No definition available.

Name:	aexc_Averageinterestrateshorttermdebttoaffiliates
Namespace Prefix:	aexc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Reflects the total carrying amount as of the balance sheet date of debt with affiliates having initial terms more than one year.

No definition available.

Name:	aexc_Longtermdebtwithaffiliates
Namespace Prefix:	aexc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Maximum loans to affiliates oustanding at month-end during the period.

No definition available.

Name:	aexc_Maximumlevelloansandleasesreceivablerelatedparties
Namespace Prefix:	aexc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Maximum long-term borrowings to affiliates oustanding at month-end during the period.

No definition available.

Name:	aexc_Maximumlevellongtermdebttoaffiliates
Namespace Prefix:	aexc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Maximum short-term borrowings to affiliates oustanding at month-end during the period.

No definition available.

Name:	aexc_Maximumlevelshorttermdebttoaffiliates
Namespace Prefix:	aexc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Transactions with affiliates.

No definition available.

Name:	aexc_Relatedpartiesdetailsabstract
Namespace Prefix:	aexc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Restricted Cash with Affiliates

No definition available.

Name:	aexc_Restrictedcashwithaffiliates
Namespace Prefix:	aexc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Reflects the total carrying amount as of the balance sheet date of debt with affiliates having initial terms less than one year or the normal operating cycle, if longer.

No definition available.

Name:	aexc_ShortTermDebtToAffiliates
Namespace Prefix:	aexc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

For an unclassified balance sheet, amounts due from related parties including affiliates, employees, joint ventures, officers and stockholders, immediate families thereof, and pension funds.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
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-Section S99
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-Subparagraph (SX 210.7-03.3)
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Subparagraph (SX 210.9-03.10(3))
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Name:	us-gaap_DueFromRelatedParties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Carrying amount as of the balance sheet date of obligations due all related parties.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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Name:	us-gaap_DueToRelatedPartiesCurrentAndNoncurrent
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount of interest expense incurred on a debt or other obligation to related party.

No definition available.

Name:	us-gaap_InterestExpenseRelatedParty
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Amount of interest income earned from interest-bearing assets owed to the entity by related party.

No definition available.

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

For an unclassified balance sheet, reflects the carrying amount of unpaid loan amounts due from related parties at the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
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Name:	us-gaap_LoansAndLeasesReceivableRelatedParties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
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-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7)
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Name:	us-gaap_NonoperatingIncomeExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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.

No definition available.