Accumulated Other Comprehensive Loss - Schedule of Reclassifications (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended		9 Months Ended	12 Months Ended
	Jun. 30, 2025	Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Jun. 30, 2025	Jun. 30, 2024	Sep. 30, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other (income) expense (Note 5)	$ 31	$ 36	$ 26	$ 33	$ 56	$ 59	$ 95	$ 134	$ 231	$ 209
Income tax expense	24		60		37	66
Goodyear Net Income	(254)	37	(79)	69	(369)	(10)	27	(46)	729	(191)
Cost of Goods Sold	3,705	$ 3,882	3,627	$ 3,722	7,218	7,349	$ 11,231	$ 15,192	$ 16,582	$ 16,955
Amount Reclassified from AOCL
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Goodyear Net Income	17		20		48	38
Amount Reclassified from AOCL | Foreign currency translation adjustment, before tax
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other (income) expense (Note 5)	(2)		0		8	0
Income tax expense	0		0		0	0
Goodyear Net Income	(2)		0		8	0
Amount Reclassified from AOCL | Accumulated Defined Benefit Plans Adjustment Attributable to Parent
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other (income) expense (Note 5)	26		26		51	54
Income tax expense	(7)		(6)		(13)	(12)
Immediate recognition of prior service cost and unrecognized gains and losses due to curtailments, settlements and divestitures	0		0		2	(5)
Goodyear Net Income	19		20		40	37
Unrecognized net actuarial losses and prior service costs, before tax	26		26		53	49
Amount Reclassified from AOCL | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax expense	0		0		0	0
Goodyear Net Income	0		0		0	1
Cost of Goods Sold	$ 0		$ 0		$ 0	$ 1