Allowance for Doubtful Accounts - Schedule of Allowance for Retail, Wholesale, Trade & Other (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2020	Oct. 31, 2019	Oct. 31, 2018
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for doubtful accounts at beginning of period	$ 44	$ 50	$ 48
Provision for doubtful accounts, net of recoveries	16	4	10
Charge-off of accounts	(11)	(12)	(8)
Financing Receivable, Allowance for Credit Losses, Other	(6)		(3)
Allowance for doubtful accounts at end of period	44	44	50
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Accounts Receivable, Allowance for Credit Loss, Recovery	1	2	3
Retail Portfolio [Member]
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for doubtful accounts at beginning of period	20	19	17
Provision for doubtful accounts, net of recoveries	12	5	7
Charge-off of accounts	(9)	(6)	(7)
Financing Receivable, Allowance for Credit Losses, Other	(1)		(1)
Allowance for doubtful accounts at end of period	23	20	19
Impaired Financing Receivable, Average Recorded Investment	29	21
Wholesale Portfolio [Member]
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for doubtful accounts at beginning of period	3	3	3
Provision for doubtful accounts, net of recoveries	(1)	0	0
Charge-off of accounts	0	0	0
Financing Receivable, Allowance for Credit Losses, Other	0		0
Allowance for doubtful accounts at end of period	2	3	3
Trade and Other Receivables [Member]
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Allowance for doubtful accounts at beginning of period	21	28	28
Provision for doubtful accounts, net of recoveries	5	(1)	3
Charge-off of accounts	(2)	(6)	(1)
Financing Receivable, Allowance for Credit Losses, Other	(5)		(2)
Allowance for doubtful accounts at end of period	19	21	28
Trade and Other Receivables [Member]
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Accounts Receivable, Allowance for Credit Loss, Recovery	0	0	0
Wholesale Portfolio [Member]
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Accounts Receivable, Allowance for Credit Loss, Recovery	0	0	0
Retail Portfolio [Member]
Accounts Receivable, Allowance for Credit Loss [Roll Forward]
Accounts Receivable, Allowance for Credit Loss, Recovery	$ 1	$ 2	$ 3