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Costs Associated with Rationalization Programs (Details) (Textual) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2014
Employees
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Restructuring Cost and Reserve [Line Items]        
New Charges $ 128us-gaap_RestructuringReservePeriodIncreaseDecrease $ 75us-gaap_RestructuringReservePeriodIncreaseDecrease $ 178us-gaap_RestructuringReservePeriodIncreaseDecrease  
Payments for Legal Settlements 20us-gaap_PaymentsForLegalSettlements      
Costs Associated with Rationalization Programs (Textuals) [Abstract]        
Restructuring Reserve 119us-gaap_RestructuringReserve 237us-gaap_RestructuringReserve 252us-gaap_RestructuringReserve 184us-gaap_RestructuringReserve
Expected Number Of Positions Eliminated 200us-gaap_RestructuringAndRelatedCostExpectedNumberOfPositionsEliminated      
Asset Write-off and Accelerated Depreciation Charges 7us-gaap_RestructuringReserveAcceleratedDepreciation 23us-gaap_RestructuringReserveAcceleratedDepreciation 20us-gaap_RestructuringReserveAcceleratedDepreciation  
Rationalizations (95)us-gaap_RestructuringCharges (58)us-gaap_RestructuringCharges (175)us-gaap_RestructuringCharges  
Restructuring Reserve, Accrual Adjustment (11)us-gaap_RestructuringReserveAccrualAdjustment (17)us-gaap_RestructuringReserveAccrualAdjustment (3)us-gaap_RestructuringReserveAccrualAdjustment  
Restructuring reserve settled with cash and non cash considerations 235gt_RestructuringReserveSettledWithCashAndNonCashConsiderations 73gt_RestructuringReserveSettledWithCashAndNonCashConsiderations 107gt_RestructuringReserveSettledWithCashAndNonCashConsiderations  
Plans Initiated in 2013 [Member]        
Costs Associated with Rationalization Programs (Textuals) [Abstract]        
Rationalizations (72)us-gaap_RestructuringCharges
/ gt_RestructuringAndRelatedCostByTypeOfPlanAxis
= gt_PlansInitiatedin2013Member
(45)us-gaap_RestructuringCharges
/ gt_RestructuringAndRelatedCostByTypeOfPlanAxis
= gt_PlansInitiatedin2013Member
   
Plans Initiated in 2012        
Costs Associated with Rationalization Programs (Textuals) [Abstract]        
Rationalizations   (13)us-gaap_RestructuringCharges
/ gt_RestructuringAndRelatedCostByTypeOfPlanAxis
= gt_PlansInitiatedin2012Member
(141)us-gaap_RestructuringCharges
/ gt_RestructuringAndRelatedCostByTypeOfPlanAxis
= gt_PlansInitiatedin2012Member
 
Plans Initiated In 2014 [Member]        
Costs Associated with Rationalization Programs (Textuals) [Abstract]        
Restructuring and Related Cost, Number of Positions Eliminated 200us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminated
/ us-gaap_RestructuringCostAndReserveAxis
= gt_PlansInitiatedIn2014Member
     
Plans Initiated in 2013 [Member]        
Costs Associated with Rationalization Programs (Textuals) [Abstract]        
Number Of Positions Eliminated, Inception To Date 300us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminatedInceptionToDate
/ us-gaap_RestructuringCostAndReserveAxis
= gt_PlansInitiatedin2013Member
     
Plans Initiated in 2012        
Costs Associated with Rationalization Programs (Textuals) [Abstract]        
Rationalizations     (74)us-gaap_RestructuringCharges
/ us-gaap_RestructuringPlanAxis
= gt_PlansInitiatedin2012Member
 
Plans Initiated in 2012 | Pension Curtailment [Member]        
Costs Associated with Rationalization Programs (Textuals) [Abstract]        
Rationalizations   0us-gaap_RestructuringCharges
/ us-gaap_RestructuringCostAndReserveAxis
= gt_PensionCurtailmentMember
/ us-gaap_RestructuringPlanAxis
= gt_PlansInitiatedin2012Member
   
Plans Initiated in 2013 [Member]        
Costs Associated with Rationalization Programs (Textuals) [Abstract]        
Restructuring and Related Cost, Number of Positions Eliminated 1,500us-gaap_RestructuringAndRelatedCostNumberOfPositionsEliminated
/ us-gaap_RestructuringPlanAxis
= gt_PlansInitiatedin2013Member
     
Plans Initiated in 2013 [Member] | Pension Curtailment [Member]        
Costs Associated with Rationalization Programs (Textuals) [Abstract]        
Rationalizations 22us-gaap_RestructuringCharges
/ us-gaap_RestructuringCostAndReserveAxis
= gt_PensionCurtailmentMember
/ us-gaap_RestructuringPlanAxis
= gt_PlansInitiatedin2013Member
     
Amiens Restructuring Plan [Member]        
Costs Associated with Rationalization Programs (Textuals) [Abstract]        
Restructuring Reserve 84us-gaap_RestructuringReserve
/ us-gaap_RestructuringPlanAxis
= gt_AmiensRestructuringPlanMember
     
Number Of Employees with Claims Filed 720gt_NumberOfEmployeeswithClaimsFiled
/ us-gaap_RestructuringPlanAxis
= gt_AmiensRestructuringPlanMember
     
Rationalizations $ (74)us-gaap_RestructuringCharges
/ us-gaap_RestructuringPlanAxis
= gt_AmiensRestructuringPlanMember