Allowance for Doubtful Accounts (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Jan. 31, 2013		Jan. 31, 2012
Allowance for doubtful accounts at beginning of period	$ 51		$ 50
Provision for doubtful accounts, net of recoveries	1		0
Charge-off of accounts	(3)	[1]	(3)	[1]
Allowance for doubtful accounts at end of period	49		47
Loss on Contract Termination for Default	1		1
Retail Portfolio [Member]
Allowance for doubtful accounts at beginning of period	27		31
Provision for doubtful accounts, net of recoveries	(1)		(2)
Charge-off of accounts	(3)	[1]	(1)	[1]
Allowance for doubtful accounts at end of period	23		28
Wholesale Portfolio [Member]
Allowance for doubtful accounts at beginning of period	0		2
Provision for doubtful accounts, net of recoveries	2		1
Charge-off of accounts	0	[1]	0	[1]
Allowance for doubtful accounts at end of period	2		3
Trade and Other Receivables [Member]
Allowance for doubtful accounts at beginning of period	24		17
Provision for doubtful accounts, net of recoveries	0		1
Charge-off of accounts	0	[1]	(2)	[1]
Allowance for doubtful accounts at end of period	$ 24		$ 16

[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 the three months ended January 31, 2013, compared to $1 million for the three months ended January 31, 2012.