Name:	tmcc_DeferredOriginationCosts
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Period Type:	instant

Reflects the cumulative amount of interest and fees paid by borrowers which have not yet been taken into income in conformity with GAAP. The amount is being amortized into income as an adjustment to yield.

No definition available.

Name:	tmcc_UnearnedIncome
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Data Type:	xbrli:monetaryItemType
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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.

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

Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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Name:	us-gaap_FinancingReceivableAllowanceForCreditLosses
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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount, before allowance for credit loss, of financing receivable.

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

Amount, after allowance for credit loss, of financing receivable. Excludes financing receivable covered under loss sharing agreement.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Name:	us-gaap_NotesReceivableNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Name:	us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis=us-gaap_FinanceReceivablesMember
Namespace Prefix:
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Balance Type:
Period Type:

Name:	srt_ProductOrServiceAxis=tmcc_RetailReceivablesExcludingPledgedReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_ProductOrServiceAxis=tmcc_SecuritizedRetailReceivablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_ProductOrServiceAxis=tmcc_DealerFinancingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: