CONSOLIDATED CONDENSED 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, 2022			137.1
Beginning balance at Dec. 31, 2022	$ (700)	$ (703)	$ 1	$ 6,666	$ 2,579	$ (101)	$ (9,848)	$ 3
Treasury stock, beginning balance (in shares) at Dec. 31, 2022							(97.6)
Comprehensive income (loss):
Net income (loss)	312	312			312
Other comprehensive loss	(10)	(10)				(10)
Total comprehensive income (loss)	302	302			312	(10)
Net activity related to restricted stock units (in shares)							0.3
Net activity related to restricted stock units	(43)	(43)		(46)			$ 3
Ending balance (in shares) at Mar. 31, 2023			137.1
Ending balance at Mar. 31, 2023	(441)	(444)	$ 1	6,620	2,891	(111)	$ (9,845)	3
Treasury stock, ending balance (in shares) at Mar. 31, 2023							(97.3)
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	(102.0)						(101.6)
Comprehensive income (loss):
Net income (loss)	$ (113)	(114)			(114)			1
Other comprehensive 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	(101.0)						(101.4)