v3.26.3
Earnings Per Share - Schedule of 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, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Loss per share — basic:        
Goodyear net income (loss) $ (238) $ (2,195) $ (691) $ (1,826)
Weighted average shares outstanding (in shares) 289 288 289 287
Earnings (loss) per common share — basic (in dollars per share) $ (0.82) $ (7.62) $ (2.39) $ (6.35)
Loss per share — diluted:        
Goodyear net income (loss) $ (238) $ (2,195) $ (691) $ (1,826)
Weighted average shares outstanding (in shares) 289 288 289 287
Dilutive effect of stock options and other dilutive securities (in shares) 0 0 0 0
Weighted average shares outstanding — diluted (in shares) 289 288 289 287
Earnings (loss) per common share — diluted (in dollars per share) $ (0.82) $ (7.62) $ (2.39) $ (6.35)