FINANCING RECEIVABLES - Retail Notes, Financing Leases, and Revolving Charge Accounts Credit Quality Analysis (Details) - USD ($) $ in Millions	Jul. 31, 2022	Oct. 31, 2021	Aug. 01, 2021
Credit Quality Analysis
Total retail customer receivables	$ 40,399		$ 37,024
Retail Customer Receivables
Credit Quality Analysis
2022 and 2021, respectively	11,643	$ 16,173	11,614
2021 and 2020, respectively	11,716	8,494	9,614
2020 and 2019, respectively	5,908	4,389	5,075
2019 and 2018, respectively	2,725	2,098	2,515
2018 and 2017, respectively	1,085	828	1,045
Prior years	438	251	372
Revolving	4,099	3,825	3,772
Total retail customer receivables	37,614	36,058	34,007
Retail Customer Receivables | Agriculture and Turf | 30-59 Days Past Due
Credit Quality Analysis
2022 and 2021, respectively	40	43	38
2021 and 2020, respectively	70	53	54
2020 and 2019, respectively	38	29	35
2019 and 2018, respectively	23	16	19
2018 and 2017, respectively	8	7	7
Prior years	4	3	3
Revolving	18	14	13
Total retail customer receivables	201	165	169
Retail Customer Receivables | Agriculture and Turf | 60-89 Days Past Due
Credit Quality Analysis
2022 and 2021, respectively	15	16	14
2021 and 2020, respectively	24	23	28
2020 and 2019, respectively	15	12	15
2019 and 2018, respectively	7	6	6
2018 and 2017, respectively	3	3	3
Prior years	1	1	1
Revolving	5	4	4
Total retail customer receivables	70	65	71
Retail Customer Receivables | Agriculture and Turf | 90 Days or Greater Past Due
Credit Quality Analysis
2021 and 2020, respectively		1	1
Total retail customer receivables		1	1
Retail Customer Receivables | Agriculture and Turf | Current
Credit Quality Analysis
2022 and 2021, respectively	9,161	12,877	9,159
2021 and 2020, respectively	9,169	6,676	7,516
2020 and 2019, respectively	4,713	3,463	3,938
2019 and 2018, respectively	2,234	1,738	2,053
2018 and 2017, respectively	935	728	910
Prior years	378	211	317
Revolving	3,962	3,704	3,658
Total retail customer receivables	30,552	29,397	27,551
Retail Customer Receivables | Agriculture and Turf | Non-performing
Credit Quality Analysis
2022 and 2021, respectively	17	23	12
2021 and 2020, respectively	62	57	58
2020 and 2019, respectively	48	53	63
2019 and 2018, respectively	37	32	42
2018 and 2017, respectively	19	17	22
Prior years	27	23	30
Revolving	7	7	6
Total retail customer receivables	217	212	233
Retail Customer Receivables | Construction and Forestry | 30-59 Days Past Due
Credit Quality Analysis
2022 and 2021, respectively	47	50	35
2021 and 2020, respectively	54	40	44
2020 and 2019, respectively	26	27	26
2019 and 2018, respectively	12	7	9
2018 and 2017, respectively	4	4	4
Prior years	1	1	1
Revolving	3	3	3
Total retail customer receivables	147	132	122
Retail Customer Receivables | Construction and Forestry | 60-89 Days Past Due
Credit Quality Analysis
2022 and 2021, respectively	14	15	13
2021 and 2020, respectively	14	11	19
2020 and 2019, respectively	12	9	10
2019 and 2018, respectively	4	6	5
2018 and 2017, respectively	1	1	1
Prior years			1
Revolving	1	1	1
Total retail customer receivables	46	43	50
Retail Customer Receivables | Construction and Forestry | 90 Days or Greater Past Due
Credit Quality Analysis
2022 and 2021, respectively		1	4
2021 and 2020, respectively	11	2	2
2020 and 2019, respectively	3	3	9
2019 and 2018, respectively	1	3	5
2018 and 2017, respectively		4	6
Prior years	3	2	2
Total retail customer receivables	18	15	28
Retail Customer Receivables | Construction and Forestry | Current
Credit Quality Analysis
2022 and 2021, respectively	2,336	3,122	2,327
2021 and 2020, respectively	2,249	1,575	1,845
2020 and 2019, respectively	1,004	754	938
2019 and 2018, respectively	382	273	357
2018 and 2017, respectively	106	57	84
Prior years	20	7	13
Revolving	102	92	86
Total retail customer receivables	6,199	5,880	5,650
Retail Customer Receivables | Construction and Forestry | Non-performing
Credit Quality Analysis
2022 and 2021, respectively	13	26	12
2021 and 2020, respectively	63	56	47
2020 and 2019, respectively	49	39	41
2019 and 2018, respectively	25	17	19
2018 and 2017, respectively	9	7	8
Prior years	4	3	4
Revolving	1		1
Total retail customer receivables	$ 164	$ 148	$ 132