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Off-balance sheet financial guarantees written and other commitments.

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percentage of asbestos claim related losses recoverable through insurance.

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Related Party, Loans And Leases Maximum Borrowing Capacity

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Sum of accrued asbestos related liability and gross payments including legal costs to date.

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Total costs accrued as of the balance sheet date for environmental loss contingencies.

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Carrying value of the obligation (known or estimated) arising from requirements to perform activities to remediate one or more sites, payable in twelve months or in the next operating cycle if longer.

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Carrying amount as of the balance sheet date of interest earned but not received. Also called accrued interest or accrued interest receivable.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Commitments and Contingent Liabilities - Narrative (Details) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2026 USD ($) claim	Sep. 30, 2025 USD ($)	Sep. 30, 2026 USD ($) claim	Sep. 30, 2025 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2015 USD ($)
Loss Contingencies [Line Items]
Liability for anticipated environmental matters	$ 84		$ 84			$ 79
Liability for anticipated environment matters, current						22
Workers' compensation liability	148		148			145
Workers' compensation liability, current	28		28			28
Potential workers' compensation liability in excess of recorded amount	25		25
Goodyear net income (loss)	(238)	$ (2,195)	(691)	$ (1,826)
Off-balance sheet financial guarantees and other commitments	15		15			15
Limits of excess insurance policies						510
TireHub \| Related Party
Loss Contingencies [Line Items]
Carrying value of net investment	17		17			44
Outstanding loan receivable	84		84			103
Interest receivable	$ 1		$ 1			2
Ownership percentage in equity method investment	50.00%		50.00%
Internal Revenue Service (IRS) \| Settlement with Taxing Authority
Loss Contingencies [Line Items]
Goodyear net income (loss)					$ 1,500
Deferred tax asset					$ 315
Maximum \| TireHub \| Related Party
Loss Contingencies [Line Items]
Financing receivable, joint venture, face amount	$ 130		$ 130
Minimum \| TireHub \| Related Party
Loss Contingencies [Line Items]
Financing receivable, joint venture, face amount	100		100
Balance Sheet Location: us-gaap:AccountsReceivableNetCurrent \| Sumitomo Rubber Industries
Loss Contingencies [Line Items]
Indemnification asset	1		1
Balance Sheet Location: us-gaap:OtherAssetsNoncurrent \| Sumitomo Rubber Industries
Loss Contingencies [Line Items]
Indemnification asset	2		2
General Product Liability
Loss Contingencies [Line Items]
Loss contingency accrual product liability net	435		435			417
General Product Liability \| Balance Sheet Location: us-gaap:OtherLiabilitiesCurrent
Loss Contingencies [Line Items]
Loss contingency accrual product liability net	74		74			66
Asbestos Related Product Liability
Loss Contingencies [Line Items]
Loss contingency accrual product liability net	$ 112		$ 112			107
Asbestos claims dismissed to date (in claims) \| claim	169,700		169,700
Accrued asbestos-related liability and gross payments to date	$ 613		$ 613			597
Product liability contingency, evaluation period			10 years
Asbestos claims receivable	$ 58		$ 58			57
Expected percentage of asbestos claim related losses recoverable through insurance	50.00%		50.00%
Asbestos Related Product Liability \| Balance Sheet Location: us-gaap:AccountsReceivableNetCurrent
Loss Contingencies [Line Items]
Asbestos claims receivable	$ 10		$ 10			$ 10
Workers' Compensation Claims
Loss Contingencies [Line Items]
Guarantee issued	$ 15		$ 15				$ 46