Condensed Consolidating Guarantor and Non-Guarantor Financial Information - Balance Sheet (Details) (USD $) In Millions, unless otherwise specified	Apr. 30, 2015	Oct. 31, 2014	Apr. 30, 2014	Oct. 31, 2013
Cash and cash equivalents	$ 583	$ 497	$ 594	$ 755
Marketable securities	273	605
Restricted cash	113	171
Finance and other receivables, net	2,674	2,616
Inventories	1,245	1,319
Investments in non-consolidated affiliates	68	73
Property and equipment, net	1,407	1,562
Goodwill	38	38
Deferred taxes, net	172	200
Other	352	362
Total assets	6,925	7,443
Debt	5,203	5,224
Postretirement benefits liabilities	2,866	2,955
Amounts due to (from) affiliates	0	0
Other liabilities	3,600	3,882
Total liabilities	11,669	12,061
Redeemable equity securities	1	2
Stockholders’ equity attributable to non-controlling interests	30	34
Stockholders’ equity (deficit) attributable to Navistar International Corporation	(4,775)	(4,654)
Total liabilities and stockholders’ deficit	6,925	7,443
Parent Company [Member]
Cash and cash equivalents	163	101
Marketable securities	150	379
Restricted cash	17	19
Finance and other receivables, net	3	0
Inventories	0	0
Investments in non-consolidated affiliates	(7,322)	(7,245)
Property and equipment, net	0	0
Goodwill	0	0
Deferred taxes, net	5	5
Other	32	34
Total assets	(6,952)	(6,707)
Debt	1,965	1,958
Postretirement benefits liabilities	0	0
Amounts due to (from) affiliates	(7,749)	(7,618)
Other liabilities	3,606	3,605
Total liabilities	(2,178)	(2,055)
Redeemable equity securities	1	2
Stockholders’ equity attributable to non-controlling interests	0	0
Stockholders’ equity (deficit) attributable to Navistar International Corporation	(4,775)	(4,654)
Total liabilities and stockholders’ deficit	(6,952)	(6,707)
Guarantor Subsidiaries [Member]
Cash and cash equivalents	37	53
Marketable securities	0	0
Restricted cash	6	4
Finance and other receivables, net	132	124
Inventories	785	792
Investments in non-consolidated affiliates	6,495	6,410
Property and equipment, net	768	827
Goodwill	0	0
Deferred taxes, net	9	9
Other	141	137
Total assets	8,373	8,356
Debt	887	937
Postretirement benefits liabilities	2,639	2,712
Amounts due to (from) affiliates	11,963	11,739
Other liabilities	249	370
Total liabilities	15,738	15,758
Redeemable equity securities	0	0
Stockholders’ equity attributable to non-controlling interests	0	0
Stockholders’ equity (deficit) attributable to Navistar International Corporation	(7,365)	(7,402)
Total liabilities and stockholders’ deficit	8,373	8,356
Non-Guarantor Subsidiaries [Member]
Cash and cash equivalents	383	343
Marketable securities	123	226
Restricted cash	90	148
Finance and other receivables, net	2,558	2,504
Inventories	475	539
Investments in non-consolidated affiliates	65	71
Property and equipment, net	646	740
Goodwill	38	38
Deferred taxes, net	158	185
Other	179	194
Total assets	4,715	4,988
Debt	2,357	2,336
Postretirement benefits liabilities	227	243
Amounts due to (from) affiliates	(4,352)	(4,267)
Other liabilities	(182)	(22)
Total liabilities	(1,950)	(1,710)
Redeemable equity securities	0	0
Stockholders’ equity attributable to non-controlling interests	30	34
Stockholders’ equity (deficit) attributable to Navistar International Corporation	6,635	6,664
Total liabilities and stockholders’ deficit	4,715	4,988
Consolidation, Eliminations [Member]
Cash and cash equivalents	0	0
Marketable securities	0	0
Restricted cash	0	0
Finance and other receivables, net	(19)	(12)
Inventories	(15)	(12)
Investments in non-consolidated affiliates	830	837
Property and equipment, net	(7)	(5)
Goodwill	0	0
Deferred taxes, net	0	1
Other	0	(3)
Total assets	789	806
Debt	(6)	(7)
Postretirement benefits liabilities	0	0
Amounts due to (from) affiliates	138	146
Other liabilities	(73)	(71)
Total liabilities	59	68
Redeemable equity securities	0	0
Stockholders’ equity attributable to non-controlling interests	0	0
Stockholders’ equity (deficit) attributable to Navistar International Corporation	730	738
Total liabilities and stockholders’ deficit	$ 789	$ 806