Segment Reporting - Segment Reporting (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				6 Months Ended
	Apr. 30, 2014		Apr. 30, 2013		Apr. 30, 2014 segments		Apr. 30, 2013
Segment Reporting Information [Line Items]
Number Of Segments					4
External sales and revenues, net	$ 2,746		$ 2,526		$ 4,954		$ 5,163
Intersegment sales and revenues	0		0		0		0
External sales and revenues, net	2,746		2,526		4,954		5,163
Sales and revenues, net	2,746		2,526		4,954		5,163
Net loss attributable to Navistar International Corporation	(297)		(374)		(545)		(497)
Income (Loss) from Continuing Operations Attributable to Parent	(298)		(353)		(547)		(467)
Income tax expense	(23)		(22)		(11)		(37)
Segment profit (loss)	(275)		(331)		(536)		(430)
Depreciation and amortization	99		142		185		242
Interest expense	74		90		156		164
Equity in income (loss) of non-consolidated affiliates	3		4		3		3
Capital expenditures	29	[1]	35	[1]	50	[1]	107	[1]
NA Truck [Member]
Segment Reporting Information [Line Items]
External sales and revenues, net	1,680		1,395		2,957		2,933
Intersegment sales and revenues	129		120		217		247
External sales and revenues, net	1,809		1,515		3,174		3,180
Sales and revenues, net	1,809		1,515		3,174		3,180
Net loss attributable to Navistar International Corporation	(134)		(303)		(341)		(404)
Income tax expense	0		0		0		0
Segment profit (loss)	(134)		(303)		(341)		(404)
Depreciation and amortization	69		114		127		185
Interest expense	0		0		0		0
Equity in income (loss) of non-consolidated affiliates	1		3		2		5
Capital expenditures	26	[1]	28	[1]	38	[1]	93	[1]
NA Parts [Member]
Segment Reporting Information [Line Items]
Number Of Regional Parts Distribution Centers	11				11
External sales and revenues, net	611		621		1,208		1,290
Intersegment sales and revenues	12		14		22		32
External sales and revenues, net	623		635		1,230		1,322
Sales and revenues, net	623		635		1,230		1,322
Net loss attributable to Navistar International Corporation	126		114		230		231
Income tax expense	0		0		0		0
Segment profit (loss)	126		114		230		231
Depreciation and amortization	4		4		8		8
Interest expense	0		0		0		0
Equity in income (loss) of non-consolidated affiliates	1		2		2		3
Capital expenditures	1	[1]	0	[1]	5	[1]	1	[1]
Global [Member]
Segment Reporting Information [Line Items]
External sales and revenues, net	417		471		712		862
Intersegment sales and revenues	6		22		14		37
External sales and revenues, net	423		493		726		899
Sales and revenues, net	423		493		726		899
Net loss attributable to Navistar International Corporation	(150)		32		(183)		22
Income tax expense	0		0		0		0
Segment profit (loss)	(150)		32		(183)		22
Depreciation and amortization	8		9		16		18
Interest expense	0		0		0		0
Equity in income (loss) of non-consolidated affiliates	1		(1)		(1)		(5)
Capital expenditures	1	[1]	4	[1]	4	[1]	7	[1]
Financial Services Operations [Member]
Segment Reporting Information [Line Items]
External sales and revenues, net	38	[2]	39	[2]	77	[2]	78	[2]
Intersegment sales and revenues	19	[2]	19	[2]	35	[2]	39	[2]
External sales and revenues, net	57	[2]	58	[2]	112	[2]	117	[2]
Sales and revenues, net	57	[2]	58	[2]	112	[2]	117	[2]
Net loss attributable to Navistar International Corporation	24	[2]	19	[2]	47	[2]	41	[2]
Income tax expense	0	[2]	0	[2]	0	[2]	0	[2]
Segment profit (loss)	24	[2]	19	[2]	47	[2]	41	[2]
Depreciation and amortization	11	[2]	10	[2]	21	[2]	19	[2]
Interest expense	17	[2]	17	[2]	34	[2]	35	[2]
Equity in income (loss) of non-consolidated affiliates	0	[2]	0	[2]	0	[2]	0	[2]
Capital expenditures	0	[1],[2]	1	[1],[2]	1	[1],[2]	1	[1],[2]
Interest revenues	42		46		82		93
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
External sales and revenues, net	0		0		0		0
Intersegment sales and revenues	(166)		(175)		(288)		(355)
External sales and revenues, net	(166)		(175)		(288)		(355)
Sales and revenues, net	(166)		(175)		(288)		(355)
Net loss attributable to Navistar International Corporation	(164)		(215)		(300)		(357)
Income tax expense	(23)		(22)		(11)		(37)
Segment profit (loss)	(141)		(193)		(289)		(320)
Depreciation and amortization	7		5		13		12
Interest expense	57		73		122		129
Equity in income (loss) of non-consolidated affiliates	0		0		0		0
Capital expenditures	$ 1	[1]	$ 2	[1]	$ 2	[1]	$ 5	[1]

[1] Exclusive of purchases of equipment leased to others.

[2] (A)Total sales and revenues in the Financial Services segment include interest revenues of $42 million and $82 million for the three and six months ended April 30, 2014, respectively and $46 million and $93 million for the three and six months ended April 30, 2013, respectively.