Receivables - Customer Receivables Age Credit Quality Analysis (Details) - USD ($) $ in Millions	Jan. 31, 2021	Nov. 01, 2020	Feb. 02, 2020
Age Credit Quality Analysis
Total Receivables	$ 33,489.3	$ 33,557.3	$ 31,722.9
Customer Receivables
Age Credit Quality Analysis
Total Receivables	25,653.8	26,464.0	22,576.6
Customer Receivables | Agriculture and turf
Age Credit Quality Analysis
Current		22,051.5	18,476.7
Non-performing		178.1	205.2
Customer Receivables | Agriculture and turf | 30-59 Days Past Due
Age Credit Quality Analysis
Past due		122.9	183.3
Total Receivables	155.3
Customer Receivables | Agriculture and turf | 60-89 Days Past Due
Age Credit Quality Analysis
Past due		51.1	71.3
Total Receivables	44.7
Customer Receivables | Agriculture and turf | 90 Days or Greater Past Due
Age Credit Quality Analysis
Past due		2.0	3.4
Total Receivables	1.3
Customer Receivables | Construction and forestry
Age Credit Quality Analysis
Current		3,851.8	3,388.9
Non-performing		80.4	114.8
Customer Receivables | Construction and forestry | 30-59 Days Past Due
Age Credit Quality Analysis
Past due		84.4	95.1
Total Receivables	101.7
Customer Receivables | Construction and forestry | 60-89 Days Past Due
Age Credit Quality Analysis
Past due		39.9	37.9
Total Receivables	38.7
Customer Receivables | Construction and forestry | 90 Days or Greater Past Due
Age Credit Quality Analysis
Past due		1.9
Total Receivables	13.5
Retail Notes and Financing Leases
Age Credit Quality Analysis
Total Receivables	23,032.1	22,636.6	19,903.4
Retail Notes and Financing Leases | Agriculture and turf
Age Credit Quality Analysis
Current		18,341.2	15,959.9
Non-performing		172.7	199.6
Retail Notes and Financing Leases | Agriculture and turf | 30-59 Days Past Due
Age Credit Quality Analysis
Past due		111.4	131.9
Retail Notes and Financing Leases | Agriculture and turf | 60-89 Days Past Due
Age Credit Quality Analysis
Past due		47.6	57.2
Retail Notes and Financing Leases | Agriculture and turf | 90 Days or Greater Past Due
Age Credit Quality Analysis
Past due		2.0	3.4
Retail Notes and Financing Leases | Construction and forestry
Age Credit Quality Analysis
Current		3,759.5	3,310.1
Non-performing		79.5	113.8
Retail Notes and Financing Leases | Construction and forestry | 30-59 Days Past Due
Age Credit Quality Analysis
Past due		82.0	91.0
Retail Notes and Financing Leases | Construction and forestry | 60-89 Days Past Due
Age Credit Quality Analysis
Past due		38.8	36.5
Retail Notes and Financing Leases | Construction and forestry | 90 Days or Greater Past Due
Age Credit Quality Analysis
Past due		1.9
Revolving charge accounts
Age Credit Quality Analysis
Total Receivables	$ 2,621.7	3,827.4	2,673.2
Revolving charge accounts | Agriculture and turf
Age Credit Quality Analysis
Current		3,710.3	2,516.8
Non-performing		5.4	5.6
Revolving charge accounts | Agriculture and turf | 30-59 Days Past Due
Age Credit Quality Analysis
Past due		11.5	51.4
Revolving charge accounts | Agriculture and turf | 60-89 Days Past Due
Age Credit Quality Analysis
Past due		3.5	14.1
Revolving charge accounts | Construction and forestry
Age Credit Quality Analysis
Current		92.3	78.8
Non-performing		0.9	1.0
Revolving charge accounts | Construction and forestry | 30-59 Days Past Due
Age Credit Quality Analysis
Past due		2.4	4.1
Revolving charge accounts | Construction and forestry | 60-89 Days Past Due
Age Credit Quality Analysis
Past due		$ 1.1	$ 1.4