Geographic Area Information (Details) $ in Millions	3 Months Ended								12 Months Ended
	Oct. 28, 2018 USD ($)	Jul. 29, 2018 USD ($)	Apr. 29, 2018 USD ($)	Jan. 28, 2018 USD ($)	Oct. 29, 2017 USD ($)	Jul. 30, 2017 USD ($)	Apr. 30, 2017 USD ($)	Jan. 29, 2017 USD ($)	Oct. 28, 2018 USD ($) item	Oct. 29, 2017 USD ($)	Oct. 30, 2016 USD ($)
Geographic Area Information
Number of operating segments | item									1
Revenues	$ 668.4	$ 661.1	$ 617.5	$ 585.2	$ 588.9	$ 571.8	$ 543.9	$ 522.4	$ 2,532.2	$ 2,227.0	$ 2,094.2
Receivables	30,646.7				28,395.7				30,646.7	28,395.7	27,714.5
U.S.
Geographic Area Information
Revenues									2,266.8	2,030.3	1,899.3
Receivables	26,039.6				24,189.6				26,039.6	24,189.6	24,287.9
Outside the U.S.
Geographic Area Information
Revenues									265.4	196.7	194.9
Receivables	$ 4,607.1				$ 4,206.1				$ 4,607.1	$ 4,206.1	$ 3,426.6