Segment Reporting - Segment Reporting (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				9 Months Ended
	Jul. 31, 2014		Jul. 31, 2013		Jul. 31, 2014 segments		Jul. 31, 2013
Segment Reporting Information [Line Items]
Number Of Segments					4
External sales and revenues, net	$ 2,844		$ 2,861		$ 7,798		$ 8,024
Intersegment sales and revenues	0		0		0		0
External sales and revenues, net	2,844		2,861		7,798		8,024
Sales and revenues, net	2,844		2,861		7,798		8,024
Net loss attributable to Navistar International Corporation	(2)		(247)		(547)		(744)
Income (Loss) from Continuing Operations Attributable to Parent	(3)		(237)		(550)		(704)
Income tax expense	(14)		(16)		(25)		(53)
Segment profit (loss)	11		(221)		(525)		(651)
Depreciation and amortization	71		88		256		330
Interest expense	78		76		234		240
Equity in income (loss) of non-consolidated affiliates	2		3		5		6
Capital expenditures	7	[1]	29	[1]	57	[1]	136	[1]
NA Truck [Member]
Segment Reporting Information [Line Items]
External sales and revenues, net	1,801		1,761		4,758		4,694
Intersegment sales and revenues	113		135		330		382
External sales and revenues, net	1,914		1,896		5,088		5,076
Sales and revenues, net	1,914		1,896		5,088		5,076
Net loss attributable to Navistar International Corporation	(12)		(143)		(353)		(547)
Income tax expense	0		0		0		0
Segment profit (loss)	(12)		(143)		(353)		(547)
Depreciation and amortization	41		59		168		244
Interest expense	0		0		0		0
Equity in income (loss) of non-consolidated affiliates	1		2		3		7
Capital expenditures	4	[1]	20	[1]	42	[1]	113	[1]
NA Parts [Member]
Segment Reporting Information [Line Items]
Number Of Regional Parts Distribution Centers	11				11
External sales and revenues, net	610		583		1,818		1,873
Intersegment sales and revenues	11		13		33		45
External sales and revenues, net	621		596		1,851		1,918
Sales and revenues, net	621		596		1,851		1,918
Net loss attributable to Navistar International Corporation	127		98		357		329
Income tax expense	0		0		0		0
Segment profit (loss)	127		98		357		329
Depreciation and amortization	4		5		12		13
Interest expense	0		0		0		0
Equity in income (loss) of non-consolidated affiliates	1		1		3		4
Capital expenditures	0	[1]	1	[1]	5	[1]	2	[1]
Global [Member]
Segment Reporting Information [Line Items]
External sales and revenues, net	395		476		1,107		1,338
Intersegment sales and revenues	12		23		26		60
External sales and revenues, net	407		499		1,133		1,398
Sales and revenues, net	407		499		1,133		1,398
Net loss attributable to Navistar International Corporation	(2)		(22)		(185)		0
Income tax expense	0		0		0		0
Segment profit (loss)	(2)		(22)		(185)		0
Depreciation and amortization	8		9		24		27
Interest expense	0		0		0		0
Equity in income (loss) of non-consolidated affiliates	0		0		(1)		(5)
Capital expenditures	2	[1]	4	[1]	6	[1]	11	[1]
Financial Services Operations [Member]
Segment Reporting Information [Line Items]
External sales and revenues, net	38	[2]	41	[2]	115	[2]	119	[2]
Intersegment sales and revenues	22	[2]	20	[2]	57	[2]	59	[2]
External sales and revenues, net	60	[2]	61	[2]	172	[2]	178	[2]
Sales and revenues, net	60	[2]	61	[2]	172	[2]	178	[2]
Net loss attributable to Navistar International Corporation	24	[2]	23	[2]	71	[2]	64	[2]
Income tax expense	0	[2]	0	[2]	0	[2]	0	[2]
Segment profit (loss)	24	[2]	23	[2]	71	[2]	64	[2]
Depreciation and amortization	12	[2]	10	[2]	33	[2]	29	[2]
Interest expense	18	[2]	17	[2]	52	[2]	52	[2]
Equity in income (loss) of non-consolidated affiliates	0	[2]	0	[2]	0	[2]	0	[2]
Capital expenditures	0	[1],[2]	0	[1],[2]	1	[1],[2]	1	[1],[2]
Interest revenues	44		47		126		140
Corporate And Eliminations [Member]
Segment Reporting Information [Line Items]
External sales and revenues, net	0		0		0		0
Intersegment sales and revenues	(158)		(191)		(446)		(546)
External sales and revenues, net	(158)		(191)		(446)		(546)
Sales and revenues, net	(158)		(191)		(446)		(546)
Net loss attributable to Navistar International Corporation	(140)		(193)		(440)		(550)
Income tax expense	(14)		(16)		(25)		(53)
Segment profit (loss)	(126)		(177)		(415)		(497)
Depreciation and amortization	6		5		19		17
Interest expense	60		59		182		188
Equity in income (loss) of non-consolidated affiliates	0		0		0		0
Capital expenditures	$ 1	[1]	$ 4	[1]	$ 3	[1]	$ 9	[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 $44 million and $126 million for the three and nine months ended July 31, 2014, respectively and $47 million and $140 million for the three and nine months ended July 31, 2013, respectively.