Stockholders' Deficit Accumulated Other Comprehensive Income (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions		3 Months Ended		6 Months Ended
	Feb. 28, 2017	Apr. 30, 2017	Apr. 30, 2016	Apr. 30, 2017	Apr. 30, 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		$ (2,617)	$ (2,601)	(2,640)	$ (2,601)
Other comprehensive loss before reclassifications		4	32	(8)	(1)
Amounts reclassified out of accumulated other comprehensive loss		34	33	69	66
Net current-period other comprehensive income (loss)		38	65	61	65
Accumulated Other Comprehensive Loss, Ending Balance		(2,579)	(2,536)	(2,579)	(2,536)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Tax expense		(6)	(16)	(10)	(11)
Net income (loss) attributable to Navistar International Corporation		$ (80)	4	$ (142)	(29)
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
Accumulated Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Loss, Beginning Balance		(292)	(320)	(280)	(287)
Other comprehensive loss before reclassifications		4	50	(8)	17
Amounts reclassified out of accumulated other comprehensive loss		0	0	0	0
Net current-period other comprehensive income (loss)		4	50	(8)	17
Accumulated Other Comprehensive Loss, Ending Balance		(288)	(270)	(288)	(270)
Pension Benefits
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Accumulated Other Comprehensive Loss, Beginning Balance		(2,326)	(2,282)	(2,361)	(2,315)
Other comprehensive loss before reclassifications		0	(18)	0	(18)
Amounts reclassified out of accumulated other comprehensive loss		34	33	69	66
Net current-period other comprehensive income (loss)		34	15	69	48
Accumulated Other Comprehensive Loss, Ending Balance		(2,292)	(2,267)	(2,292)	(2,267)
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	1	0	1
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax [Abstract]
Amortization of actuarial loss		35	34	70	67
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest		(35)	(33)	(70)	(66)
Tax expense		(1)	0	(1)	0
Reclassification from AOCI, Current Period, Net of Tax, Attributable to Parent		$ 34	$ 33	$ 69	$ 66
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