CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating activities
Net income (loss)	$ (1,817)	$ 1,635	$ 2,756
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Vehicle depreciation	2,658	2,228	1,709
Amortization of right-of-use assets	1,114	1,006	877
(Gain) loss on sale of vehicles, net	167	(656)	(1,019)
Vehicle related reserves	496	348	234
Non-vehicle related depreciation and amortization	237	216	225
Deferred income taxes	(905)	191	682
Stock-based compensation	19	30	25
Amortization of debt financing fees	46	40	34
Early extinguishment of debt costs	21	5	0
Long-lived asset impairment and other related charges	2,470	0	0
Net change in assets and liabilities:
Receivables	51	(43)	(97)
Income taxes	45	(81)	6
Accounts payable and other current liabilities	63	(72)	217
Operating lease liabilities	(1,097)	(1,002)	(879)
Other, net	(50)	(17)	(63)
Net cash provided by operating activities	3,518	3,828	4,707
Investing activities
Property and equipment additions	(202)	(273)	(246)
Proceeds received on asset sales	3	3	2
Net assets acquired (net of cash acquired)	(3)	(65)	(3)
Other, net	12	6	(33)
Net cash used in investing activities exclusive of vehicle programs	(190)	(329)	(280)
Vehicle programs:
Investment in vehicles	(9,860)	(15,185)	(10,491)
Proceeds received on disposition of vehicles	7,394	8,403	6,606
Investment in debt securities of Avis Budget Rental Car Funding (AESOP) LLC —related party	(798)	(541)	(439)
Proceeds from debt securities of Avis Budget Rental Car Funding (AESOP) LLC —related party	701	306	305
Vehicle programs	(2,563)	(7,017)	(4,019)
Net cash used in investing activities	(2,753)	(7,346)	(4,299)
Financing activities
Proceeds from long-term borrowings	1,569	936	729
Payments on long-term borrowings	(939)	(818)	(24)
Net change in short-term borrowings	0	0	(1)
Debt financing fees	(28)	(22)	(7)
Repurchases of common stock	(70)	(951)	(3,329)
Dividends paid	0	(355)	0
Contributions from non-controlling interests	0	0	40
Net cash provided by (used) in financing activities exclusive of vehicle programs	532	(1,210)	(2,592)
Vehicle programs:
Proceeds from borrowings	21,335	23,980	17,419
Payments on borrowings	(22,604)	(19,220)	(15,160)
Debt financing fees	(44)	(44)	(27)
Net cash provided by financing activities of vehicle programs	(1,313)	4,716	2,232
Net cash provided by (used in) financing activities	(781)	3,506	(360)
Effect of changes in exchange rates on cash and cash equivalents, program and restricted cash	(31)	14	(32)
Net increase (decrease) in cash and cash equivalents, program and restricted cash	(47)	2	16
Cash and cash equivalents, program and restricted cash, beginning of period	644	642	626
Cash and cash equivalents, program and restricted cash, end of period	597	644	642
Supplemental disclosure
Interest payments	1,273	988	543
Income tax payments, net	$ 50	$ 169	$ 192