CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating activities
Net income (loss)	$ 1,283	$ (684)	$ 302
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Vehicle depreciation	1,402	1,330	1,890
Amortization of right-of-use assets	806	945	989
(Gain) loss on sale of vehicles, net	(361)	(157)	(82)
Non-vehicle related depreciation and amortization	272	286	263
Deferred income taxes	378	(317)	(103)
Stock-based compensation	30	9	22
Amortization of debt financing fees	33	33	31
Early extinguishment of debt costs	136	9	12
Net change in assets and liabilities:
Receivables	(143)	115	10
Income taxes	(28)	1	(5)
Accounts payable and other current liabilities	414	(181)	84
Operating lease liabilities	(801)	(936)	(981)
Other, net	70	238	154
Net cash provided by operating activities	3,491	691	2,586
Investing activities
Property and equipment additions	(108)	(94)	(250)
Proceeds received on asset sales	3	6	11
Net assets acquired (net of cash acquired)	(46)	(69)	(77)
Other, net	(3)	0	81
Net cash used in investing activities exclusive of vehicle programs	(154)	(157)	(235)
Vehicle programs:
Investment in vehicles	(10,054)	(5,401)	(12,887)
Proceeds received on disposition of vehicles	4,077	8,753	10,460
Investment in debt securities of Avis Budget Rental Car Funding (AESOP)—related party	(367)	(286)	(251)
Proceeds from debt securities of Avis Budget Rental Car Funding (AESOP)—related party	192	268	161
Net Cash Used In Investing Activities Of Vehicle Programs	(6,152)	3,334	(2,517)
Net cash provided by (used in) investing activities	(6,306)	3,177	(2,752)
Financing activities
Proceeds from long-term borrowings	1,100	991	402
Payments on long-term borrowings	(1,354)	(308)	(509)
Net change in short-term borrowings	1	0	(1)
Debt financing fees	(24)	(26)	(7)
Proceeds from issuance of common stock	0	15	0
Repurchases of common stock	(1,460)	(119)	(67)
Contributions from non-controlling interests	38	0	0
Net cash provided by (used in) financing activities exclusive of vehicle programs	(1,699)	553	(182)
Vehicle programs:
Proceeds from borrowings	14,467	13,558	19,869
Payments on borrowings	(10,056)	(18,138)	(19,346)
Debt financing fees	(25)	(18)	(23)
Net cash provided by financing activities of vehicle programs	4,386	(4,598)	500
Net cash provided by (used in) financing activities	2,687	(4,045)	318
Effect of changes in exchange rates on cash and cash equivalents, program and restricted cash	(11)	42	13
Net (decrease) increase in cash and cash equivalents, program and restricted cash	(139)	(135)	165
Cash and cash equivalents, program and restricted cash, beginning of period	765	900	735
Cash and cash equivalents, program and restricted cash, end of period	626	765	900
Supplemental disclosure
Interest payments	509	503	509
Income tax payments, net	$ 75	$ 44	$ 93