Accumulated Other Comprehensive Loss - Schedule of Reclassifications (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Foreign currency translation adjustment, before tax	$ 288	$ 134	$ 231
Tax effect	1,567	95	10
Deferred Derivative (Gains) Losses	14,909	15,192	16,582
Goodyear Net Income (Loss)	1,721	(46)	729
Amount Reclassified from AOCL
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Goodyear Net Income (Loss)	304	78	120
Amount Reclassified from AOCL | Foreign currency translation adjustment, before tax
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Foreign currency translation adjustment, before tax	8	0	0
Tax effect	0	0	0
Goodyear Net Income (Loss)	8	0	0
Amount Reclassified from AOCL | Accumulated Defined Benefit Plans Adjustment Attributable to Parent
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Foreign currency translation adjustment, before tax	101	108	106
Tax effect	(4)	(26)	(37)
Immediate recognition of prior service cost and unrecognized gains and losses due to curtailments, settlements and divestitures	199	(3)	47
Unrecognized Net Actuarial Losses and Prior Service Costs, before tax	300	105	153
Goodyear Net Income (Loss)	296	79	116
Amount Reclassified from AOCL | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Tax effect	0	0	0
Deferred Derivative (Gains) Losses	0	(1)	4
Goodyear Net Income (Loss)	$ 0	$ (1)	$ 4