Condensed Consolidating Guarantor and Non-Guarantor Financial Information - Statement of Cash Flows (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2017	Oct. 31, 2016	Oct. 31, 2015
Finance and other receivables, net	$ 2,189	$ 1,969
Net cash provided by (used in) operating activities	109	267	$ 46
Net change in restricted cash and cash equivalents	(22)	5	42
Net purchases of marketable securities	(324)	113	446
Capital expenditures and purchase of equipment leased to others	(239)	(248)	(198)
Other investing activities	43	63	26
Net cash provided by (used in) investing activities	(542)	(67)	316
Net borrowings (repayments) of debt	49	(342)	115
Other financing activities	44	(11)	(17)
Net cash provided by (used in) financing activities	338	(353)	98
Effect of exchange rate changes on cash and cash equivalents	(3)	45	(45)
Cash and Cash Equivalents, Period Increase (Decrease)	(98)	(108)	415
Cash and cash equivalents at beginning of the year	804	912	497
Cash and cash equivalents at end of the year	706	804	912
Consolidation, Eliminations [Member]
Finance and other receivables, net	(90)	(84)
Net cash provided by (used in) operating activities	639	(151)	(393)
Net change in restricted cash and cash equivalents	0	0	0
Net purchases of marketable securities	0	0	0
Capital expenditures and purchase of equipment leased to others	0	0	0
Other investing activities	255	0	0
Net cash provided by (used in) investing activities	255	0	0
Net borrowings (repayments) of debt	(642)	(69)	268
Other financing activities	3	220	125
Net cash provided by (used in) financing activities	(894)	151	393
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Cash and Cash Equivalents, Period Increase (Decrease)	0	0	0
Cash and cash equivalents at beginning of the year	0	0	0
Cash and cash equivalents at end of the year	0	0	0
Parent Company [Member]
Finance and other receivables, net	1	(1)
Net cash provided by (used in) operating activities	(244)	(106)	87
Net change in restricted cash and cash equivalents	0	0	3
Net purchases of marketable securities	(311)	85	266
Capital expenditures and purchase of equipment leased to others	0	0	0
Other investing activities	(250)	0	0
Net cash provided by (used in) investing activities	(561)	85	269
Net borrowings (repayments) of debt	539	0	(2)
Other financing activities	11	0	1
Net cash provided by (used in) financing activities	795	0	(1)
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Cash and Cash Equivalents, Period Increase (Decrease)	(10)	(21)	355
Cash and cash equivalents at beginning of the year	435	456	101
Cash and cash equivalents at end of the year	425	435	456
Guarantor Subsidiaries [Member]
Finance and other receivables, net	223	171
Net cash provided by (used in) operating activities	(247)	187	184
Net change in restricted cash and cash equivalents	(2)	1	(4)
Net purchases of marketable securities	0	0	0
Capital expenditures and purchase of equipment leased to others	(156)	(94)	(82)
Other investing activities	2	2	3
Net cash provided by (used in) investing activities	(156)	(91)	(83)
Net borrowings (repayments) of debt	320	(82)	(38)
Other financing activities	59	22	(35)
Net cash provided by (used in) financing activities	379	(60)	(73)
Effect of exchange rate changes on cash and cash equivalents	0	0	0
Cash and Cash Equivalents, Period Increase (Decrease)	(24)	36	28
Cash and cash equivalents at beginning of the year	117	81	53
Cash and cash equivalents at end of the year	93	117	81
Non-Guarantor Subsidiaries [Member]
Finance and other receivables, net	2,055	1,883
Net cash provided by (used in) operating activities	(39)	337	168
Net change in restricted cash and cash equivalents	(20)	4	43
Net purchases of marketable securities	(13)	28	180
Capital expenditures and purchase of equipment leased to others	(83)	(154)	(116)
Other investing activities	36	61	23
Net cash provided by (used in) investing activities	(80)	(61)	130
Net borrowings (repayments) of debt	(168)	(191)	(113)
Other financing activities	(29)	(253)	(108)
Net cash provided by (used in) financing activities	58	(444)	(221)
Effect of exchange rate changes on cash and cash equivalents	(3)	45	(45)
Cash and Cash Equivalents, Period Increase (Decrease)	(64)	(123)	32
Cash and cash equivalents at beginning of the year	252	375	343
Cash and cash equivalents at end of the year	$ 188	$ 252	$ 375