CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS’ EQUITY - USD ($) shares in Millions, $ in Millions	Total	Stockholders’ Equity Attributable to Avis Budget Group, Inc.	Common Stock	Additional Paid-in Capital	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Non-controlling Interests
Beginning balance (in shares) at Dec. 31, 2023			137.1
Beginning balance at Dec. 31, 2023	$ (343)	$ (349)	$ 1	$ 6,634	$ 3,854	$ (96)	$ (10,742)	$ 6
Treasury stock, beginning balance (in shares) at Dec. 31, 2023							(101.6)
Comprehensive income (loss):
Net income (loss)	(113)	(114)			(114)			1
Other comprehensive income (loss)	(44)	(44)				(44)
Total comprehensive income (loss)	(157)	(158)			(114)	(44)		1
Net activity related to restricted stock units (in shares)							0.2
Net activity related to restricted stock units	(8)	(8)		(24)	(2)		$ 18
Ending balance (in shares) at Mar. 31, 2024			137.1
Ending balance at Mar. 31, 2024	(508)	(515)	$ 1	6,610	3,738	(140)	$ (10,724)	7
Treasury stock, ending balance (in shares) at Mar. 31, 2024							(101.4)
Beginning balance (in shares) at Dec. 31, 2024			137.1
Beginning balance at Dec. 31, 2024	$ (2,317)	(2,327)	$ 1	6,620	2,029	(210)	$ (10,767)	10
Treasury stock, beginning balance (in shares) at Dec. 31, 2024	(102.0)						(102.0)
Comprehensive income (loss):
Net income (loss)	$ (504)	(505)			(505)			1
Other comprehensive income (loss)	8	8				8
Total comprehensive income (loss)	(496)	(497)			(505)	8		1
Net activity related to restricted stock units (in shares)							0.1
Net activity related to restricted stock units	2	2		(8)	0		$ 10
Ending balance (in shares) at Mar. 31, 2025			137.1
Ending balance at Mar. 31, 2025	$ (2,811)	$ (2,822)	$ 1	$ 6,612	$ 1,524	$ (202)	$ (10,757)	$ 11
Treasury stock, ending balance (in shares) at Mar. 31, 2025	(102.0)						(101.9)