Commitments and Contingent Liabilities - Narrative (Details) $ in Millions		12 Months Ended
	Oct. 31, 2025	Dec. 31, 2025 USD ($) claim	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2015 USD ($)
Loss Contingencies [Line Items]
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]		Other Current Liabilities	Other Current Liabilities
Liability for anticipated environmental matters		$ 79	$ 81
Liability for anticipated environment matters, current		$ 22	$ 24
Environmental Loss Contigency, Current Statement Of Financial Position [Extensible Enumeration]		Other Current Liabilities	Other Current Liabilities
Workers' compensation liability		$ 145	$ 158
Workers' compensation liability, current		28	31
Potential workers' compensation liability in excess of recorded amount		25
Goodyear net income (loss)		(1,721)	46	$ (729)
Deferred tax assets		3,209	3,077		$ 315
Binding commitments		76
Off-balance sheet financial guarantees and other commitments		15	29
Warranty reserve		12	15	$ 21
Binding Commitment For Raw Materials, Capital Expenditures, Utilities And Various Other Types Of Contracts
Loss Contingencies [Line Items]
Commitments on contracts		5,500
Binding commitments		4,000
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Chemical Business
Loss Contingencies [Line Items]
Purchase minimum quantities on quarterly basis term (in years)	15 years
Internal Revenue Service (IRS) | Settlement with Taxing Authority
Loss Contingencies [Line Items]
Goodyear net income (loss)					$ 1,500
TireHub
Loss Contingencies [Line Items]
Financing receivable, joint venture, face amount		130
Loans receivable, related parties		103	119
Interest receivable		2	2
Accounts receivable | Sumitomo Rubber Industries
Loss Contingencies [Line Items]
Indemnification asset		3
Other Assets | Sumitomo Rubber Industries
Loss Contingencies [Line Items]
Indemnification asset		2
General Product Liability
Loss Contingencies [Line Items]
Loss contingency accrual product liability net		417	406
General Product Liability | Other current liabilities
Loss Contingencies [Line Items]
Loss contingency accrual product liability net		66	60
Asbestos Related Product Liability
Loss Contingencies [Line Items]
Loss contingency accrual product liability net		$ 107	115
Asbestos claims dismissed to date (in claims) | claim		167,000
Accrued asbestos-related liability and gross payments to date		$ 597	589
Product liability contingency, evaluation period (in years)		10 years
Asbestos claims receivable		$ 57	63
Expected percentage of asbestos claim related losses recoverable through insurance		55.00%
Asbestos claims receivable, current		$ 10	$ 11
Limits of excess insurance policies		510
Workers' Compensation Claims
Loss Contingencies [Line Items]
Guarantee issued		$ 15				$ 46