CONSOLIDATED CONDENSED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenues
Revenues	$ 2,371	$ 760	$ 3,743	$ 2,513
Expenses
Operating	1,032	622	1,864	1,680
Vehicle depreciation and lease charges, net	338	374	592	833
Selling, general and administrative	294	132	476	383
Vehicle interest, net	77	87	152	170
Non-vehicle related depreciation and amortization	62	71	130	140
Interest expense related to corporate debt, net:
Interest expense	59	51	120	99
Early extinguishment of debt	0	3	129	7
Restructuring and other related charges	22	28	42	72
Transaction-related costs, net	1	1	2	3
Total expenses	1,885	1,369	3,507	3,387
Income (loss) before income taxes	486	(609)	236	(874)
Provision for (benefit from) income taxes	88	(128)	8	(235)
Net income (loss)	398	(481)	228	(639)
Comprehensive income (loss)	$ 400	$ (448)	$ 254	$ (705)
Earnings (loss) per share
Basic (in dollars per share)	$ 5.69	$ (6.91)	$ 3.26	$ (8.96)
Diluted (in dollars per share)	$ 5.63	$ (6.91)	$ 3.23	$ (8.96)