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, 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)
Comprehensive income (loss):
Net income (loss)	(504)	(505)			(505)			1
Other comprehensive income (loss)	8	8				8
Total comprehensive loss attributable to Avis Budget Group, Inc.	(497)
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)			$ 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							(101.9)
Beginning balance (in shares) at Dec. 31, 2025			137.1
Beginning balance at Dec. 31, 2025	$ (3,116)	(3,129)	$ 1	6,622	1,139	(138)	$ (10,753)	13
Treasury stock, beginning balance (in shares) at Dec. 31, 2025	(102.0)						(101.9)
Comprehensive income (loss):
Net income (loss)	$ (282)	(283)			(283)			1
Net income (loss)	(234)
Other comprehensive income (loss)	1	2				2		(1)
Total comprehensive loss attributable to Avis Budget Group, Inc.	(281)	(281)			(283)	2
Net activity related to restricted stock units (in shares)							0.1
Net activity related to restricted stock units	(5)	(5)		(15)			$ 10
Ending balance (in shares) at Mar. 31, 2026			137.1
Ending balance at Mar. 31, 2026	$ (3,402)	$ (3,415)	$ 1	$ 6,607	$ 856	$ (136)	$ (10,743)	$ 13
Treasury stock, ending balance (in shares) at Mar. 31, 2026	(102.0)						(101.8)