Financing Arrangements and Derivative Financial Instruments - Schedule of Long Term Debt and Capital Leases and Financing Arrangements (Details)	Sep. 30, 2018 USD ($)	Sep. 30, 2018 EUR (€)	Dec. 31, 2017 USD ($)	Dec. 31, 2017 EUR (€)
Long-term Debt and Capital Lease Obligations [Abstract]
Long-term debt, before deferred financing fees	$ 6,075,000,000		$ 5,468,000,000
Unamortized deferred financing fees	(37,000,000)		(41,000,000)
Total long term debt excluding capital leases	6,038,000,000		5,427,000,000
Capital lease obligations	37,000,000		40,000,000
Long-term debt and capital lease obligations, including current maturities	6,075,000,000		5,467,000,000
Less portion due within one year	(471,000,000)		(391,000,000)
Long-term debt and capital lease obligations, excluding current maturities	5,604,000,000		5,076,000,000
Senior Notes \| 8.75% due 2020
Long-term Debt and Capital Lease Obligations [Abstract]
Long-term debt, before deferred financing fees	$ 277,000,000		$ 275,000,000
Interest rate, stated percentage	8.75%	8.75%	8.75%	8.75%
Senior Notes \| 5.125% due 2023
Long-term Debt and Capital Lease Obligations [Abstract]
Long-term debt, before deferred financing fees	$ 1,000,000,000		$ 1,000,000,000
Interest rate, stated percentage	5.125%	5.125%	5.125%	5.125%
Senior Notes \| 5% due 2026
Long-term Debt and Capital Lease Obligations [Abstract]
Long-term debt, before deferred financing fees	$ 900,000,000		$ 900,000,000
Interest rate, stated percentage	5.00%	5.00%	5.00%	5.00%
Senior Notes \| 4.875% due 2027
Long-term Debt and Capital Lease Obligations [Abstract]
Long-term debt, before deferred financing fees	$ 700,000,000		$ 700,000,000
Interest rate, stated percentage	4.875%	4.875%	4.875%	4.875%
Senior Notes \| 7% due 2028
Long-term Debt and Capital Lease Obligations [Abstract]
Long-term debt, before deferred financing fees	$ 150,000,000		$ 150,000,000
Interest rate, stated percentage	7.00%	7.00%	7.00%	7.00%
Euro Notes \| 3.75% Euro Notes due 2023
Long-term Debt and Capital Lease Obligations [Abstract]
Long-term debt, before deferred financing fees	$ 290,000,000		$ 300,000,000
Interest rate, stated percentage	3.75%	3.75%	3.75%	3.75%
Line of Credit \| $2.0 billion first lien revolving credit facility due 2021
Long-term Debt and Capital Lease Obligations [Abstract]
Maximum borrowing capacity	$ 2,000,000,000.0
Line of Credit \| Revolving Credit Facility \| $2.0 billion first lien revolving credit facility due 2021
Long-term Debt and Capital Lease Obligations [Abstract]
Long-term debt, before deferred financing fees	$ 325,000,000		$ 0
Interest rate	3.41%	3.41%	0.00%	0.00%
Maximum borrowing capacity	$ 2,000,000,000.0		$ 2,000,000,000.0
Line of Credit \| Revolving Credit Facility \| €550 million revolving credit facility due 2020
Long-term Debt and Capital Lease Obligations [Abstract]
Long-term debt, before deferred financing fees	$ 360,000,000		$ 0
Interest rate	3.90%	3.90%	0.00%	0.00%
Maximum borrowing capacity \| €		€ 550,000,000		€ 550,000,000
Line of Credit \| Secured Debt \| Second lien term loan facility due 2025
Long-term Debt and Capital Lease Obligations [Abstract]
Long-term debt, before deferred financing fees	$ 400,000,000		$ 400,000,000
Interest rate	4.15%	4.15%	3.50%	3.50%
Line of Credit \| Secured Debt \| Pan-European accounts receivable facility
Long-term Debt and Capital Lease Obligations [Abstract]
Long-term debt, before deferred financing fees	$ 221,000,000		$ 224,000,000
Interest rate	0.89%	0.89%	0.90%	0.90%
Line of Credit \| Foreign Line of Credit \| Mexican credit facilities
Long-term Debt and Capital Lease Obligations [Abstract]
Long-term debt, before deferred financing fees	$ 340,000,000		$ 340,000,000
Less portion due within one year	$ (90,000,000)		$ 0
Interest rate	3.90%	3.90%	3.14%	3.14%
Line of Credit \| Foreign Line of Credit \| Chinese credit facilities
Long-term Debt and Capital Lease Obligations [Abstract]
Long-term debt, before deferred financing fees	$ 157,000,000		$ 212,000,000
Less portion due within one year	$ (43,000,000)		$ (113,000,000)
Interest rate	4.98%	4.98%	4.87%	4.87%
Other Foreign and Domestic Debt
Long-term Debt and Capital Lease Obligations [Abstract]
Long-term debt, before deferred financing fees	$ 955,000,000		$ 967,000,000
Less portion due within one year	$ (338,000,000)		$ (278,000,000)
Interest rate	5.28%	5.28%	6.02%	6.02%

Long-term Debt, Before Deferred Finance Costs

No definition available.

Name:	gt_LongTermDebtBeforeDeferredFinanceCosts
Namespace Prefix:	gt_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=84164817&loc=d3e45280-112737

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

Name:	us-gaap_CapitalLeaseObligations
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Sum of the carrying values as of the balance sheet date of all debt, including all short-term borrowings, long-term debt, and capital lease obligations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.13,16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

Name:	us-gaap_DebtAndCapitalLeaseObligations
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

+ Details

Name:	us-gaap_DebtWeightedAverageInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

+ References

+ Details

Name:	us-gaap_DeferredFinanceCostsNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(3)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of long-term debt and capital lease obligation due after one year or beyond the normal operating cycle, if longer.

+ References

+ Details

Name:	us-gaap_LongTermDebtAndCapitalLeaseObligations
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- References

No definition available.

+ Details

Name:	us-gaap_LongTermDebtAndCapitalLeaseObligationsAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Principal amount of long-term debt and capital lease obligation maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

No definition available.

+ Details

Name:	us-gaap_LongTermDebtAndCapitalLeaseObligationsRepaymentsOfPrincipalInNextTwelveMonths
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_SeniorNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=gt_A8.75NotesDue2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=gt_A5.125NotesDue2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=gt_A5NotesDue2026Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=gt_A4.875NotesDue2027Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=gt_SevenPercentNotesDueInTwoThousandTwentyEightMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=gt_EuroNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=gt_A3.75EuroNotesDue2023Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_LineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=gt_FirstLienRevolvingCreditFacilityDue2021Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=gt_EuropeanRevolvingCreditFacilityDue2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_SecuredDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=gt_SecondLienTermLoanFacilityDue2025Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=gt_PanEuropeanAccountsReceivableFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_ForeignLineOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=gt_MexicanCreditFacilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=gt_ChineseCreditFacilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=gt_OtherDomesticAndInternationalDebtMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: