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Restructuring and Impairments - Narrative (Details) (USD $)
In Millions, unless otherwise specified
3 Months Ended
Jan. 31, 2015
Jan. 31, 2014
Restructuring Cost and Reserve [Line Items]    
Restructuring charges $ 3us-gaap_RestructuringCharges $ 3us-gaap_RestructuringCharges
Asset impairment charges 7us-gaap_AssetImpairmentCharges 18us-gaap_AssetImpairmentCharges
North America Truck [Member]    
Restructuring Cost and Reserve [Line Items]    
Asset impairment charges 7us-gaap_AssetImpairmentCharges
/ us-gaap_StatementBusinessSegmentsAxis
= nav_NorthAmericaTruckMember
18us-gaap_AssetImpairmentCharges
/ us-gaap_StatementBusinessSegmentsAxis
= nav_NorthAmericaTruckMember
Huntsville Engine Plant [Member] | North America Truck [Member] | Employee Severance [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring charges   1us-gaap_RestructuringCharges
/ dei_EntityByLocationAxis
= nav_HuntsvilleEnginePlantMember
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
/ us-gaap_StatementBusinessSegmentsAxis
= nav_NorthAmericaTruckMember
Huntsville Engine Plant [Member] | North America Truck [Member] | Engine Plant Consolidation [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring charges   2us-gaap_RestructuringCharges
/ dei_EntityByLocationAxis
= nav_HuntsvilleEnginePlantMember
/ us-gaap_RestructuringCostAndReserveAxis
= nav_EnginePlantConsolidationMember
/ us-gaap_StatementBusinessSegmentsAxis
= nav_NorthAmericaTruckMember
Minimum [Member] | Chatham [Member] | North America Truck [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring and Related Cost, Expected Cost 0us-gaap_RestructuringAndRelatedCostExpectedCost1
/ dei_EntityByLocationAxis
= nav_ChathamMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
/ us-gaap_StatementBusinessSegmentsAxis
= nav_NorthAmericaTruckMember
 
Maximum [Member] | Chatham [Member] | North America Truck [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring and Related Cost, Expected Cost 60us-gaap_RestructuringAndRelatedCostExpectedCost1
/ dei_EntityByLocationAxis
= nav_ChathamMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_StatementBusinessSegmentsAxis
= nav_NorthAmericaTruckMember
 
Maximum [Member] | Indianapolis and Waukesha Foundry [Member] | North America Truck [Member]    
Restructuring Cost and Reserve [Line Items]    
Restructuring and Related Cost, Cost Incurred to Date $ 13us-gaap_RestructuringAndRelatedCostCostIncurredToDate1
/ dei_EntityByLocationAxis
= nav_IndianapolisandWaukeshaFoundryMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
/ us-gaap_StatementBusinessSegmentsAxis
= nav_NorthAmericaTruckMember