CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS - USD ($)	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Operating activities
Net income (loss)	$ (594,000,000)	$ 160,000,000
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Vehicle depreciation	1,063,000,000	1,457,000,000
Amortization of right-of-use assets	710,000,000	752,000,000
(Gain) loss on sale of vehicles, net	(123,000,000)	(69,000,000)
Non-vehicle related depreciation and amortization	214,000,000	195,000,000
Stock-based compensation	6,000,000	18,000,000
Amortization of debt financing fees	24,000,000	23,000,000
Early extinguishment of debt	9,000,000	10,000,000
Net change in assets and liabilities:
Receivables	156,000,000	(65,000,000)
Income taxes and deferred income taxes	(239,000,000)	40,000,000
Accounts payable and other current liabilities	(59,000,000)	41,000,000
Operating lease liabilities	(707,000,000)	(746,000,000)
Other, net	172,000,000	115,000,000
Net cash provided by operating activities	632,000,000	1,931,000,000
Investing activities
Property and equipment additions	(75,000,000)	(178,000,000)
Proceeds received on asset sales	5,000,000	7,000,000
Net assets acquired (net of cash acquired)	63,000,000	68,000,000
Other, net	0	80,000,000
Net cash used in investing activities exclusive of vehicle programs	(133,000,000)	(159,000,000)
Vehicle programs:
Investment in vehicles	(4,749,000,000)	(10,621,000,000)
Proceeds received on disposition of vehicles	7,386,000,000	7,826,000,000
Investment in debt securities of Avis Budget Rental Car Funding (AESOP) LLC—related party	(243,000,000)	(221,000,000)
Proceeds from debt securities of Avis Budget Rental Car Funding (AESOP) LLC—related party	222,000,000	137,000,000
Net cash used in investing activities of vehicle programs	(2,616,000,000)	2,879,000,000
Net cash provided by (used in) investing activities	2,483,000,000	(3,038,000,000)
Financing activities
Proceeds from long-term borrowings	991,000,000	402,000,000
Payments on long-term borrowings	(303,000,000)	(427,000,000)
Proceeds from Issuance of Common Stock	15,000,000	0
Repurchases of common stock	(119,000,000)	(65,000,000)
Debt financing fees	(24,000,000)	(6,000,000)
Net cash provided by (used in) financing activities exclusive of vehicle programs	560,000,000	(96,000,000)
Vehicle programs:
Proceeds from borrowings	12,349,000,000	16,042,000,000
Payments on borrowings	(15,280,000,000)	(14,838,000,000)
Debt financing fees	(12,000,000)	(18,000,000)
Net cash provided by financing activities of vehicle programs	(2,943,000,000)	1,186,000,000
Net cash provided by (used in) financing activities	(2,383,000,000)	1,090,000,000
Effect of changes in exchange rates on cash and cash equivalents, program and restricted cash	28,000,000	(10,000,000)
Net increase (decrease) in cash and cash equivalents, program and restricted cash	760,000,000	(27,000,000)
Cash and cash equivalents, program and restricted cash, beginning of period	900,000,000	735,000,000
Cash and cash equivalents, program and restricted cash, end of period	$ 1,660,000,000	$ 708,000,000
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		21.00%