CONSOLIDATED CONDENSED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement of Cash Flows [Abstract]
Document Fiscal Year Focus	2019
Operating activities
Net loss	$ (91)	$ (87)
Adjustments to reconcile net loss to net cash provided by operating activities:
Vehicle depreciation	436	460
Amortization of right-of-use assets	215	0
(Gain) loss on sale of vehicles, net	(8)	(1)
Non-vehicle related depreciation and amortization	67	61
Stock-based compensation	5	5
Amortization of debt financing fees	8	8
Early extinguishment of debt	0	5
Net change in assets and liabilities:
Receivables	2	16
Income taxes and deferred income taxes	(51)	(44)
Accounts payable and other current liabilities	97	109
Operating lease liabilities	(216)	0
Other, net	(24)	(29)
Net cash provided by operating activities	440	503
Investing activities
Property and equipment additions	(57)	(57)
Proceeds received on asset sales	2	4
Net assets acquired (net of cash acquired)	5	10
Other, net	(3)	(19)
Net cash used in investing activities exclusive of vehicle programs	(63)	(82)
Vehicle programs:
Investment in vehicles	(4,376)	(4,226)
Proceeds received on disposition of vehicles	3,083	2,572
Repayments of Related Party Debt	(78)	0
Net cash used in investing activities of vehicle programs	1,371	1,654
Net cash used in investing activities	(1,434)	(1,736)
Financing activities
Proceeds from long-term borrowings	0	81
Payments on long-term borrowings	(5)	(89)
Proceeds from (Repayments of) Short-term Debt	0	(1)
Repurchases of common stock	(4)	(14)
Debt financing fees	0	(8)
Other, net	0	1
Net cash used in financing activities exclusive of vehicle programs	(9)	(30)
Vehicle programs:
Proceeds from borrowings	5,989	5,100
Payments on borrowings	(5,038)	(4,045)
Debt financing fees	(5)	(1)
Net cash provided by financing activities of vehicle programs	946	1,054
Net cash provided by financing activities	937	1,024
Effect of changes in exchange rates on cash and cash equivalents, program and restricted cash	(2)	9
Net decrease in cash and cash equivalents, program and restricted cash	(59)	(200)
Cash and cash equivalents, program and restricted cash, beginning of period	735	901
Cash and cash equivalents, program and restricted cash, end of period	$ 676	$ 701