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, 2018	Jul. 31, 2017	Jul. 31, 2018	Jul. 31, 2017
Income (loss) from continuing operations, net of tax	$ 170	$ 36	$ 152	$ (106)
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	177	42	172	(87)
Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Parent	0	1	0	1
Net loss attributable to Navistar International Corporation	$ 170	$ 37	$ 152	$ (105)
Basic (in shares)	99.0	98.3	98.8	91.1
Weighted Average Number Diluted Shares Outstanding Adjustment	0.7	0.3	0.8	0.0
Diluted (in shares)	99.7	98.6	99.6	91.1
Earnings Per Share, Basic	$ 1.72	$ 0.38	$ 1.54	$ (1.15)
Income (Loss) from Continuing Operations, Per Basic Share	1.72	0.37	1.54	(1.16)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	0.00	0.01	0.00	0.01
Earnings Per Share, Diluted	1.71	0.38	1.53	(1.15)
Income (Loss) from Continuing Operations, Per Diluted Share	1.71	0.37	1.53	(1.16)
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	$ 0.00	$ 0.01	$ 0.00	$ 0.01
Retained Earnings [Member]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest			$ 152	$ (105)