Loss Per Share Attributable to Navistar International Corporation - Basic & Diluted Loss per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2015	Jul. 31, 2014
Earnings Per Share [Abstract]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	15.0	23.8	16.0	26.2
Loss from continuing operations, net of tax	$ (30)	$ (3)	$ (136)	$ (550)
Income from discontinued operations, net of tax	2	1	2	3
Net loss attributable to Navistar International Corporation	$ (28)	$ (2)	$ (134)	$ (547)
Basic (in shares)	81.6	81.4	81.5	81.3
Weighted Average Number Diluted Shares Outstanding Adjustment	0.0	0.0	0.0	0.0
Diluted (in shares)	81.6	81.4	81.5	81.3
Basic: Loss from Continuing Operations (in dollars per share)	$ (0.37)	$ (0.04)	$ (1.67)	$ (6.77)
Basic: Income (Loss) from Discontinued Operations (in dollars per share)	0.03	0.02	0.03	0.04
Basic (in dollars per share)	(0.34)	(0.02)	(1.64)	(6.73)
Diluted: Loss from Continuing Operations (in dollars per share)	(0.37)	(0.04)	(1.67)	(6.77)
Diluted: Income (Loss) from Discontinued Operations (in dollars per share)	0.03	0.02	0.03	0.04
Diluted (in dollars per share)	$ (0.34)	$ (0.02)	$ (1.64)	$ (6.73)