Commitments and Contingent Liabilities - Narrative (Details) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025 USD ($) claim	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) claim	Sep. 30, 2024 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2024 USD ($)	Dec. 31, 2015 USD ($)
Loss Contingencies [Line Items]
Liability for anticipated environmental matters	$ 77		$ 77			$ 81
Liability for anticipated environment matters, current	20		20			24
Workers' compensation liability	161		161			158
Workers' compensation liability, current	28		28			31
Potential workers' compensation liability in excess of recorded amount	25		25
Limits of excess insurance policies						520
Goodyear net income (loss)	(2,195)	$ (37)	(1,826)	$ (27)
Deferred tax asset					$ 315
Off-balance sheet financial guarantees and other commitments	29		29			29
Internal Revenue Service (IRS) | Settlement with Taxing Authority
Loss Contingencies [Line Items]
Goodyear net income (loss)					$ 1,500
TireHub | Related Party
Loss Contingencies [Line Items]
Financing receivable, joint venture, face amount	130		130
Carrying value of net investment	64		64			110
Loans receivable, related parties	113		113			119
Interest receivable	$ 2		$ 2			2
Ownership percentage in equity method investment	50.00%		50.00%
Accounts receivable | Sumitomo Rubber Industries
Loss Contingencies [Line Items]
Indemnification asset	$ 4		$ 4
Other Assets | Sumitomo Rubber Industries
Loss Contingencies [Line Items]
Indemnification asset	2		2
General Product Liability
Loss Contingencies [Line Items]
Loss contingency accrual product liability net	409		409			406
General Product Liability | Other current liabilities
Loss Contingencies [Line Items]
Loss contingency accrual product liability net	81		81			60
Asbestos Related Product Liability
Loss Contingencies [Line Items]
Loss contingency accrual product liability net	$ 116		$ 116			115
Asbestos claims dismissed to date (in claims) | claim	164,800		164,800
Accrued asbestos-related liability and gross payments to date	$ 601		$ 601			589
Product liability contingency, evaluation period			10 years
Asbestos claims receivable	$ 64		$ 64			63
Expected percentage of asbestos claim related losses recoverable through insurance	55.00%		55.00%
Asbestos claims receivable, current	$ 11		$ 11			$ 11
Workers' Compensation Claims
Loss Contingencies [Line Items]
Guarantee issued	$ 15		$ 15				$ 46