Leases - Short-term Relief to Lessees (Details)	Jan. 31, 2021
COVID-19
Lessor
Percentage of operating lease portfolio granted relief	3.00%

Percentage of operating lease portfolio that was granted relief due to the negative effects of COVID.

No definition available.

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