Earnings Per Share - Basic and Diluted Earnings per Common Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Loss per share — basic:
Goodyear net income (loss)	$ (2,195)	$ (37)	$ (1,826)	$ (27)
Weighted average shares outstanding (in shares)	288	287	287	286
Loss per common share — basic (in dollars per share)	$ (7.62)	$ (0.13)	$ (6.35)	$ (0.09)
Loss per share — diluted:
Goodyear net income (loss)	$ (2,195)	$ (37)	$ (1,826)	$ (27)
Weighted average shares outstanding (in shares)	288	287	287	286
Dilutive effect of stock options and other dilutive securities (in shares)	0	0	0	0
Weighted average shares outstanding — diluted (in shares)	288	287	287	286
Loss per common share — diluted (in dollars per share)	$ (7.62)	$ (0.13)	$ (6.35)	$ (0.09)