v3.25.3
Earnings Per 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
Earnings Per Share [Abstract]        
Net income (loss) attributable to Avis Budget Group, Inc. for basic and diluted EPS $ 359 $ 237 $ (142) $ 137
Basic weighted average shares outstanding (in shares) 35.2 35.5 35.2 35.6
Non-vested stock (in shares) 0.3 0.2 0.0 0.2
Diluted weighted average shares outstanding (in shares) 35.5 35.7 35.2 35.8
Earnings (loss) per share        
Basic (in usd per share) $ 10.22 $ 6.67 $ (4.02) $ 3.86
Diluted (in usd per share) $ 10.11 $ 6.65 $ (4.02) $ 3.84
Non-vested stock awards        
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]        
Antidilutive securities (in shares) 0.0 0.2 0.2 0.2