Document and Entity Information Document (USD $) In Billions, except Share data, unless otherwise specified	12 Months Ended
	Oct. 31, 2014	Nov. 30, 2014	Apr. 30, 2014
Document and Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Oct. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
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		81,414,738
Entity Public Float			$ 2.0