Condensed Consolidating Guarantor and Non-Guarantor Financial Information - Balance Sheet (Details) - USD ($) $ in Millions	Jul. 31, 2016	Oct. 31, 2015	Jul. 31, 2015	Oct. 31, 2014
Cash and cash equivalents	$ 547	$ 912	$ 547	$ 497
Marketable securities	140	159
Restricted cash	181	121
Finance and other receivables, net	1,930	2,437
Inventories, net	1,084	1,135
Investments in non-consolidated affiliates	60	66
Property and equipment, net	1,257	1,345
Goodwill	38	38
Deferred taxes, net	153	164
Other	329	315
Total assets	5,719	6,692
Debt	5,065	5,298
Postretirement benefits liabilities	2,998	3,088
Amounts due to (from) affiliates	0	0
Other liabilities	2,790	3,466
Total liabilities	10,853	11,852
Stockholders’ equity attributable to non-controlling interests	3	7
Stockholders’ equity (deficit) attributable to Navistar International Corporation	(5,137)	(5,167)
Total liabilities and stockholders’ deficit	5,719	6,692
Parent Company [Member]
Cash and cash equivalents	197	456
Marketable securities	0	112
Restricted cash	16	16
Finance and other receivables, net	3	1
Inventories, net	0	0
Investments in non-consolidated affiliates	(7,577)	(7,679)
Property and equipment, net	0	0
Goodwill	0	0
Deferred taxes, net	0	7
Other	28	33
Total assets	(7,333)	(7,054)
Debt	1,983	1,971
Postretirement benefits liabilities	0	0
Amounts due to (from) affiliates	(7,986)	(7,574)
Other liabilities	3,807	3,716
Total liabilities	(2,196)	(1,887)
Stockholders’ equity attributable to non-controlling interests	0	0
Stockholders’ equity (deficit) attributable to Navistar International Corporation	(5,137)	(5,167)
Total liabilities and stockholders’ deficit	(7,333)	(7,054)
Guarantor Subsidiaries [Member]
Cash and cash equivalents	85	81
Marketable securities	0	0
Restricted cash	3	7
Finance and other receivables, net	87	99
Inventories, net	756	809
Investments in non-consolidated affiliates	6,278	6,204
Property and equipment, net	682	737
Goodwill	0	0
Deferred taxes, net	15	20
Other	124	128
Total assets	8,030	8,085
Debt	1,123	1,180
Postretirement benefits liabilities	2,797	2,909
Amounts due to (from) affiliates	10,722	10,280
Other liabilities	(119)	207
Total liabilities	14,523	14,576
Stockholders’ equity attributable to non-controlling interests	0	0
Stockholders’ equity (deficit) attributable to Navistar International Corporation	(6,493)	(6,491)
Total liabilities and stockholders’ deficit	8,030	8,085
Non-Guarantor Subsidiaries [Member]
Cash and cash equivalents	265	375
Marketable securities	140	47
Restricted cash	162	98
Finance and other receivables, net	1,949	2,440
Inventories, net	341	342
Investments in non-consolidated affiliates	56	64
Property and equipment, net	581	616
Goodwill	38	38
Deferred taxes, net	138	137
Other	178	155
Total assets	3,848	4,312
Debt	1,961	2,151
Postretirement benefits liabilities	201	179
Amounts due to (from) affiliates	(2,905)	(2,879)
Other liabilities	(831)	(388)
Total liabilities	(1,574)	(937)
Stockholders’ equity attributable to non-controlling interests	3	7
Stockholders’ equity (deficit) attributable to Navistar International Corporation	5,419	5,242
Total liabilities and stockholders’ deficit	3,848	4,312
Consolidation, Eliminations [Member]
Cash and cash equivalents	0	0
Marketable securities	0	0
Restricted cash	0	0
Finance and other receivables, net	(109)	(103)
Inventories, net	(13)	(16)
Investments in non-consolidated affiliates	1,303	1,477
Property and equipment, net	(6)	(8)
Goodwill	0	0
Deferred taxes, net	0	0
Other	(1)	(1)
Total assets	1,174	1,349
Debt	(2)	(4)
Postretirement benefits liabilities	0	0
Amounts due to (from) affiliates	169	173
Other liabilities	(67)	(69)
Total liabilities	100	100
Stockholders’ equity attributable to non-controlling interests	0	0
Stockholders’ equity (deficit) attributable to Navistar International Corporation	1,074	1,249
Total liabilities and stockholders’ deficit	$ 1,174	$ 1,349
Manufacturing Operations [Member] | Notes Payable to Banks [Member] | Eight Point Two Five Percent Senior Notes [Member]
Debt Instrument, Interest Rate, Stated Percentage	8.25%