Consolidated Statements of Comprehensive Loss - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 30, 2020	Apr. 30, 2019	Apr. 30, 2020	Apr. 30, 2019
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (33)	$ (43)	$ (65)	$ (26)
Other comprehensive income (loss):
Foreign currency translation adjustment	(103)	(18)	(111)	(4)
Defined benefit plans, net of tax	24	23	49	138
Total other comprehensive income (loss)	(79)	5	(62)	134
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest	(112)	(38)	(127)	108
Less: Net income attributable to non-controlling interests	5	5	9	11
Total comprehensive income (loss) attributable to Navistar International Corporation	$ (117)	$ (43)	$ (136)	$ 97