Income Taxes - Tax Sharing Agreement (Details) - USD ($) $ in Millions			3 Months Ended								12 Months Ended
	Jan. 01, 2018	Dec. 31, 2017	Nov. 01, 2020	Aug. 02, 2020	May 03, 2020	Feb. 02, 2020	Nov. 03, 2019	Jul. 28, 2019	Apr. 28, 2019	Jan. 27, 2019	Nov. 01, 2020	Nov. 03, 2019	Oct. 28, 2018
Tax Sharing Agreement
Federal corporate statutory tax rate (as a percent)	21.00%	35.00%									21.00%	21.00%	23.30%
Provision (credit) for income taxes assuming computation on an unmodified, separate return basis			$ 58.2	$ 44.4	$ 5.4	$ 26.1	$ 24.1	$ 11.8	$ 35.7	$ 23.9	$ 134.1	$ 95.5	$ (217.2)
Pro forma net income attributable to the Company			153.7	$ 146.2	$ 25.9	$ 99.2	68.4	$ 144.8	$ 84.3	$ 121.7	425.0	419.2	799.2
Pro Forma
Tax Sharing Agreement
Provision (credit) for income taxes assuming computation on an unmodified, separate return basis													(198.2)
Pro forma net income attributable to the Company													780.2
Tax Sharing Agreement | John Deere
Tax Sharing Agreement
Additional tax benefit under the tax sharing agreement													$ 19.0
Federal corporate statutory tax rate (as a percent)													23.30%
Amounts payable to Deere and Company under the tax sharing agreement			$ 42.9				$ 2.5				$ 42.9	$ 2.5