Condensed Consolidating Guarantor and Non-Guarantor Financial Information Statement of Operations (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			9 Months Ended
	Jul. 31, 2011	Jul. 31, 2010		Jul. 31, 2011	Jul. 31, 2010
Condensed Financial Statements, Captions [Line Items]
Sales and revenues, net	$ 3,537	$ 3,221		$ 9,635	$ 8,773
Costs of products sold	2,930	2,525		7,830	6,976
Restructuring charges (benefit)	56	(9)		80	(23)
Impairment of property and equipment and intangible assets	64	0		64	0
All other operating expenses	519	544	[1]	1,561	1,554	[1]
Total costs and expenses	3,569	3,060	[1]	9,535	8,507	[1]
Equity in income (loss) of non-consolidated affiliates	(22)	(13)		(55)	(32)
Income before income tax benefit (expense)	(54)	148	[1]	45	234	[1]
Income tax benefit (expense)	1,463	(19)		1,458	(17)
Net income (loss)	1,409	129	[1]	1,503	217	[1]
Less: Net income attributable to non-controlling interests	9	12		35	38
Net income attributable to Navistar International Corporation	1,400	117	[1]	1,468	179	[1]
NIC [Member]
Condensed Financial Statements, Captions [Line Items]
Sales and revenues, net	0	0		0	0
Costs of products sold	0	4		0	(2)
Restructuring charges (benefit)	0	0		0	0
Impairment of property and equipment and intangible assets	0			0
All other operating expenses	15	14	[1]	56	47	[1]
Total costs and expenses	15	18	[1]	56	45	[1]
Equity in income (loss) of non-consolidated affiliates	1,863	143		1,983	234
Income before income tax benefit (expense)	1,848	125	[1]	1,927	189	[1]
Income tax benefit (expense)	(448)	(8)		(459)	(10)
Net income (loss)	1,400	117	[1]	1,468	179	[1]
Less: Net income attributable to non-controlling interests	0	0		0	0
Net income attributable to Navistar International Corporation	1,400	117	[1]	1,468	179	[1]
Navistar, Inc. [Member]
Condensed Financial Statements, Captions [Line Items]
Sales and revenues, net	2,072	1,797		5,903	4,852
Costs of products sold	1,940	1,767		5,493	4,552
Restructuring charges (benefit)	4	(4)		27	(21)
Impairment of property and equipment and intangible assets	0			0
All other operating expenses	302	341	[1]	915	1,014	[1]
Total costs and expenses	2,246	2,104	[1]	6,435	5,545	[1]
Equity in income (loss) of non-consolidated affiliates	(52)	364		292	678
Income before income tax benefit (expense)	(226)	57	[1]	(240)	(15)	[1]
Income tax benefit (expense)	1,514	(4)		1,515	(1)
Net income (loss)	1,288	53	[1]	1,275	(16)	[1]
Less: Net income attributable to non-controlling interests	0	0		0	0
Net income attributable to Navistar International Corporation	1,288	53	[1]	1,275	(16)	[1]
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Sales and revenues, net	3,260	3,094		9,079	8,294
Costs of products sold	2,774	2,413		7,620	6,740
Restructuring charges (benefit)	52	(5)		53	(2)
Impairment of property and equipment and intangible assets	64			64
All other operating expenses	230	207	[1]	671	572	[1]
Total costs and expenses	3,120	2,615	[1]	8,408	7,310	[1]
Equity in income (loss) of non-consolidated affiliates	(9)	(2)		(29)	(10)
Income before income tax benefit (expense)	131	477	[1]	642	974	[1]
Income tax benefit (expense)	(162)	(50)		(214)	(68)
Net income (loss)	(31)	427	[1]	428	906	[1]
Less: Net income attributable to non-controlling interests	9	12		35	38
Net income attributable to Navistar International Corporation	(40)	415	[1]	393	868	[1]
Eliminations and Other [Member]
Condensed Financial Statements, Captions [Line Items]
Sales and revenues, net	(1,795)	(1,670)		(5,347)	(4,373)
Costs of products sold	(1,784)	(1,659)		(5,283)	(4,314)
Restructuring charges (benefit)	0	0		0	0
Impairment of property and equipment and intangible assets	0			0
All other operating expenses	(28)	(18)	[1]	(81)	(79)	[1]
Total costs and expenses	(1,812)	(1,677)	[1]	(5,364)	(4,393)	[1]
Equity in income (loss) of non-consolidated affiliates	(1,824)	(518)		(2,301)	(934)
Income before income tax benefit (expense)	(1,807)	(511)	[1]	(2,284)	(914)	[1]
Income tax benefit (expense)	559	43		616	62
Net income (loss)	(1,248)	(468)	[1]	(1,668)	(852)	[1]
Less: Net income attributable to non-controlling interests	0	0		0	0
Net income attributable to Navistar International Corporation	$ (1,248)	$ (468)	[1]	$ (1,668)	$ (852)	[1]
Senior Notes [Member] | Manufacturing [Member]
Debt instrument:
Stated interest rate	8.25%			8.25%
Loan Agreement [Member] | Manufacturing [Member]
Debt instrument:
Stated interest rate	6.50%			6.50%

[1] Certain amounts have been revised to reflect a retrospective change in accounting principle. See Note 1, Summary of significant accounting policies.