Document and Entity Information Document	9 Months Ended
	Jul. 31, 2013	Aug. 31, 2013
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jul. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q3
Trading Symbol	nav
Entity Registrant Name	NAVISTAR INTERNATIONAL CORP
Entity Central Index Key	0000808450
Current Fiscal Year End Date	--10-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		80,423,213