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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, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Earnings (loss) per share — basic:        
Goodyear net income (loss) $ (2) $ 88 $ (1,317) $ 81
Weighted Average Shares Outstanding (in shares) 234 233 234 233
Earnings (loss) per common share-basic (in dollars per share) $ (0.01) $ 0.38 $ (5.62) $ 0.35
Earnings (loss) per share — diluted:        
Goodyear net income (loss) $ (2) $ 88 $ (1,317) $ 81
Weighted Average Shares Outstanding (in shares) 234 233 234 233
Dilutive effect of stock options and other dilutive securities (in shares) 0 1 0 1
Weighted average shares outstanding — diluted (in shares) 234 234 234 234
Earnings (loss) per common share-diluted (in dollars per share) $ (0.01) $ 0.38 $ (5.62) $ 0.35