Geographic Area Information (Details) $ in Millions	3 Months Ended								12 Months Ended
	Nov. 01, 2020 USD ($)	Aug. 02, 2020 USD ($)	May 03, 2020 USD ($)	Feb. 02, 2020 USD ($)	Nov. 03, 2019 USD ($)	Jul. 28, 2019 USD ($)	Apr. 28, 2019 USD ($)	Jan. 27, 2019 USD ($)	Nov. 01, 2020 USD ($) item	Nov. 03, 2019 USD ($)	Oct. 28, 2018 USD ($)
Geographic Area Information
Number of operating segments | item									1
Revenues	$ 692.9	$ 696.0	$ 700.1	$ 718.6	$ 784.7	$ 741.8	$ 703.0	$ 660.8	$ 2,807.6	$ 2,890.3	$ 2,532.2
Receivables	33,557.3				32,821.5				33,557.3	32,821.5	30,646.7
U.S.
Geographic Area Information
Revenues									2,517.6	2,588.1	2,266.8
Receivables	28,196.8				27,854.5				28,196.8	27,854.5	26,039.6
Outside the U.S.
Geographic Area Information
Revenues									290.0	302.2	265.4
Receivables	$ 5,360.5				$ 4,967.0				$ 5,360.5	$ 4,967.0	$ 4,607.1