Earnings (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, 2017	Jul. 31, 2016	Jul. 31, 2017	Jul. 31, 2016
Earnings Per Share [Abstract]
Income (loss) from continuing operations, net of tax	$ 36	$ (34)	$ (106)	$ (63)
Income from discontinued operations, net of tax	1	0	1	0
Net loss attributable to Navistar International Corporation	$ 37	$ (34)	$ (105)	$ (63)
Basic (in shares)	98.3	81.7	91.1	81.7
Weighted Average Number Diluted Shares Outstanding Adjustment	0.3	0.0	0.0	0.0
Diluted (in shares)	98.6	81.7	91.1	81.7
Basic: Loss from Continuing Operations (in dollars per share)	$ 0.37	$ (0.42)	$ (1.16)	$ (0.77)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	0.01	0.00	0.01	0.00
Earnings Per Share, Basic	0.38	(0.42)	(1.15)	(0.77)
Diluted: Loss from Continuing Operations (in dollars per share)	0.37	(0.42)	(1.16)	(0.77)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	0.01	0.00	0.01	0.00
Earnings Per Share, Diluted	$ 0.38	$ (0.42)	$ (1.15)	$ (0.77)