CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Statement of Comprehensive Income [Abstract]
Net income (loss)	$ 2,756	$ 1,283	$ (684)
Less: net loss attributable to non-controlling interests	(8)	(2)	0
Net income (loss) attributable to Avis Budget Group, Inc.	2,764	1,285	(684)
Other comprehensive income (loss), net of tax
Currency translation adjustments, net of tax of $(11), $(20) and $23, respectively	(46)	(35)	33
Reclassification of currency translation adjustments to earnings	0	11	(2)
Cash flow hedges:
Net unrealized holding gains (losses), net of tax of $(20), $(6), and $14, respectively	57	18	(39)
Reclassification of cash flow hedges to earnings, net of tax of $(2), $(5), and $(3), respectively	7	14	8
Minimum pension liability adjustment:
Pension and post-retirement benefits, net of tax of $(4), $(13), and $12, respectively	11	39	(36)
Reclassification of pension and post-retirement benefits to earnings, net of tax of $(2), $(2), and $(3), respectively	3	7	6
Other comprehensive income (loss)	32	54	(30)
Total comprehensive income (loss) attributable to Avis Budget Group, Inc.	$ 2,796	$ 1,339	$ (714)