Allowance for Doubtful Accounts - Schedule of Allowance for Retail, Wholesale, Trade & Other (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2017
Allowance for Doubtful Accounts Receivable [Roll Forward]
Allowance for doubtful accounts at beginning of period	$ 50	$ 48	$ 49
Provision for doubtful accounts, net of recoveries	4	10	7
Charge-off of accounts	(12)	(8)	(8)
Financing Receivable, Allowance for Credit Losses, Other	0	(3)	(1)
Allowance for doubtful accounts at end of period	44	50	48
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Allowance for Doubtful Accounts Receivable, Recoveries	2	3	1
Retail Portfolio [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Allowance for doubtful accounts at beginning of period	19	17	19
Provision for doubtful accounts, net of recoveries	5	7	4
Charge-off of accounts	(6)	(7)	(7)
Financing Receivable, Allowance for Credit Losses, Other	0	(1)	0
Allowance for doubtful accounts at end of period	20	19	17
Impaired Financing Receivable, Average Recorded Investment	21	19
Wholesale Portfolio [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Allowance for doubtful accounts at beginning of period	3	3	2
Provision for doubtful accounts, net of recoveries	0	0	1
Charge-off of accounts	0	0	0
Financing Receivable, Allowance for Credit Losses, Other	0	0	0
Allowance for doubtful accounts at end of period	3	3	3
Trade and Other Receivables [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Allowance for doubtful accounts at beginning of period	28	28	28
Provision for doubtful accounts, net of recoveries	(1)	3	2
Charge-off of accounts	(6)	(1)	(1)
Financing Receivable, Allowance for Credit Losses, Other	0	(2)	(1)
Allowance for doubtful accounts at end of period	21	28	28
Trade and Other Receivables [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Allowance for Doubtful Accounts Receivable, Recoveries	0	0	0
Wholesale Portfolio [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Allowance for Doubtful Accounts Receivable, Recoveries	0	0	0
Retail Portfolio [Member]
Allowance for Doubtful Accounts Receivable [Roll Forward]
Allowance for Doubtful Accounts Receivable, Recoveries	$ 2	$ 3	$ 1