CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ (995)	$ (1,817)	$ 1,635
Less: Net income (loss) attributable to non-controlling interests	(106)	4	3
Net income (loss) attributable to Avis Budget Group, Inc.	(889)	(1,821)	1,632
Currency translation adjustments:
Currency translation adjustments, net of tax of $43, $(19) and $7, respectively	77	(122)	27
Cash flow hedges:
Net unrealized holding gains (losses), net of tax of $1, $(5), and $(2), respectively	(2)	15	5
Reclassification of cash flow hedges to earnings, net of tax of $5, $7, and $5, respectively	(15)	(21)	(13)
Minimum pension liability adjustment:
Pension and post-retirement benefits, net of tax of $(3), $(4), and $6, respectively	9	10	(18)
Reclassification of pension and post-retirement benefits to earnings, net of tax of $(1), $(1), and $(1), respectively	3	4	4
Other comprehensive income (loss)	72	(114)	5
Total comprehensive income (loss) attributable to Avis Budget Group, Inc.	$ (817)	$ (1,935)	$ 1,637