Name:	jdcc_RetailCustomerPaymentDeferralPeriod
Namespace Prefix:	jdcc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Percentage of retail notes, financing leases, and revolving charge accounts balance that was granted relief due to the negative effects of COVID.

No definition available.

Name:	jdcc_RetailCustomerPercentReliefGranted
Namespace Prefix:	jdcc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

Threshold period for payment deferrals of wholesale notes negatively impacted by COVID, in 'PnYnMnDTnHnS' format, for example, 'P1Y5M13D' represents the reported fact for one year, five months, and thirteen days.

No definition available.

Name:	jdcc_WholesaleNotesPaymentDeferralPeriod
Namespace Prefix:	jdcc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

Percentage of wholesale notes balance that was granted relief due to the negative effects of COVID.

No definition available.

Name:	jdcc_WholesaleNotesPercentReliefGranted
Namespace Prefix:	jdcc_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

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

Name:	us-gaap_UnusualOrInfrequentItemAxis=jdcc_Covid19RelatedLoanModificationsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=jdcc_RetailNotesPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_FinanceLeasesPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=jdcc_RevolvingChargeAccountsPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: