Stockholders' Deficit Accumulated Other Comprehensive Income (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended			9 Months Ended
	Feb. 28, 2017	Jul. 31, 2017	Jul. 31, 2016	Apr. 30, 2016	Jul. 31, 2017	Jul. 31, 2016	Oct. 31, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items]
Issuance of common stock					$ 256
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Loss, Beginning Balance		$ (2,579)	$ (2,536)		(2,640)	$ (2,601)
Other comprehensive loss before reclassifications		114		$ (10)	106	(11)
Amounts reclassified out of accumulated other comprehensive loss		53		34	122	100
Net current-period other comprehensive income (loss)		167	24	24	228	89
Accumulated Other Comprehensive Loss, Ending Balance		(2,412)	(2,512)	(2,536)	(2,412)	(2,512)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest		41	(28)		(88)	(39)
Tax expense		0	(14)		(10)	(25)
Net income (loss) attributable to Navistar International Corporation		$ 37	(34)		$ (105)	(63)
Common stock, shares authorized		220.0			220.0		220.0
Common stock, par value		$ 0.1			$ 0.1		$ 0.10
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Loss, Beginning Balance		$ 1	1		$ 1	1
Other comprehensive loss before reclassifications		0		0	0	0
Amounts reclassified out of accumulated other comprehensive loss		0		0	0	0
Net current-period other comprehensive income (loss)		0		0	0	0
Accumulated Other Comprehensive Loss, Ending Balance		1	1	1	1	1
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Loss, Beginning Balance		(288)	(270)		(280)	(287)
Other comprehensive loss before reclassifications		42		(10)	34	7
Amounts reclassified out of accumulated other comprehensive loss		0		0	0	0
Net current-period other comprehensive income (loss)		42		(10)	34	7
Accumulated Other Comprehensive Loss, Ending Balance		(246)	(280)	(270)	(246)	(280)
Pension Benefits
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Loss, Beginning Balance		(2,292)	(2,267)		(2,361)	(2,315)
Other comprehensive loss before reclassifications		72		0	72	(18)
Amounts reclassified out of accumulated other comprehensive loss		53		34	122	100
Net current-period other comprehensive income (loss)		125		34	194	82
Accumulated Other Comprehensive Loss, Ending Balance		(2,167)	(2,233)	$ (2,267)	(2,167)	(2,233)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Pension Benefits
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other Comprehensive (Income) Loss, Amortization Adjustment from AOCI, Pension and Other Postretirement Benefit Plans, for Net Prior Service Cost (Credit), before Tax		0	0		0	1
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Amortization of actuarial loss		36	34		106	101
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest		(59)	(34)		(129)	(100)
Tax expense		(6)	0		(7)	0
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent		$ 53	$ 34		$ 122	$ 100
Volkswagen Truck and Bus GmbH [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Stock Purchase Agreement, Ownership Percentage Transferred to Acquirer, Pro Forma	16.60%
Stock Purchase Agreement, Ownership Percentage Transferred to Acquirer	19.90%
Stock Issued During Period, Shares, New Issues	16.2
Share Price		$ 15.76			$ 15.76
Issuance of common stock					$ 256