Allowance for Doubtful Accounts - Retail, Wholesale, Trade & Other (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jan. 31, 2014 segments class		Jan. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]
Financing Receivable By Class Number of Portfolio Segments	2
Financing Receivable Number Of Classes Of Receivables In Each Portfolio	1
Allowance for doubtful accounts at beginning of period	$ 60		$ 51
Provision for doubtful accounts, net of recoveries	6		1
Charge-off of accounts(A)	(2)	[1]	(3)	[1]
Other(B)	(4)	[1]
Allowance for doubtful accounts at end of period	60		49
Loss on Contract Termination for Default	1		1
Retail Portfolio [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Impaired Financing Receivable, Average Recorded Investment	14		14
Allowance for doubtful accounts at beginning of period	21		27
Provision for doubtful accounts, net of recoveries	4		(1)
Charge-off of accounts(A)	(2)	[1]	(3)	[1]
Other(B)	(1)	[1]
Allowance for doubtful accounts at end of period	22		23
Wholesale Portfolio [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for doubtful accounts at beginning of period	2		0
Provision for doubtful accounts, net of recoveries	0		2
Charge-off of accounts(A)	0	[1]	0	[1]
Other(B)	0	[1]
Allowance for doubtful accounts at end of period	2		2
Trade and Other Receivables [Member]
Financing Receivable, Allowance for Credit Losses [Line Items]
Allowance for doubtful accounts at beginning of period	37		24
Provision for doubtful accounts, net of recoveries	2		0
Charge-off of accounts(A)	0	[1]	0	[1]
Other(B)	(3)	[1]
Allowance for doubtful accounts at end of period	$ 36		$ 24

[1] We repossess sold and leased vehicles on defaulted finance receivables and leases, and place them into Inventories. Losses recognized at the time of repossession and charged against the allowance for doubtful accounts were less than $1 million for both the three months ended January 31, 2014 and 2013.