New Accounting Standards (Details) - USD ($) $ in Millions	6 Months Ended
	May 02, 2021	Jan. 31, 2021	Nov. 02, 2020	Nov. 01, 2020	May 03, 2020	Feb. 02, 2020	Nov. 03, 2019
Assets
Allowance for credit losses	$ (129.8)	$ (149.5)	$ (148.8)	$ (129.1)	$ (139.8)	$ (103.1)	$ (100.6)
Deferred income taxes	31.0		27.8	27.1	33.8
Liabilities
Accounts payable and accrued expenses	840.8		921.8	922.3	877.9
Deposits withheld from dealers and merchants	125.8		128.3	114.8	109.0
Deferred income taxes	295.7		340.1	345.9	452.9
Retained earnings	$ 3,074.3		$ 2,865.4	2,891.6	$ 2,641.7
ASU 2016-13
New accounting standards
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
Change in Accounting Principle, Accounting Standards Update, Transition Option Elected [Fixed List]	jdcc:AccountingStandardsUpdate201613CumulativeEffectPeriodOfAdoptionMember
ASU 2016-13 | Cumulative Effect from Adoption
Assets
Allowance for credit losses				(19.7)
Deferred income taxes				0.7
Liabilities
Accounts payable and accrued expenses				(0.5)
Deposits withheld from dealers and merchants				13.5
Deferred income taxes				(5.8)
Retained earnings				$ (26.2)
ASU 2018-15
New accounting standards
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
ASU 2019-04
New accounting standards
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
ASU 2021-01
New accounting standards
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
ASU 2019-12
New accounting standards
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	false
ASU 2020-08
New accounting standards
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	false