Condensed Consolidated Statements of Operations and Comprehensive Loss (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Operating Revenue:
Total operating revenue	$ 4,150	$ 8,592
Operating Expense:
Salaries and related costs	2,202	2,862
Aircraft fuel and related taxes	1,017	1,595
Ancillary businesses and refinery	706	219
Contracted services	519	748
Landing fees and other rents	493	550
Depreciation and amortization	492	678
Regional carrier expense	401	577
Aircraft maintenance materials and outside repairs	294	469
Passenger service	118	273
Passenger commissions and other selling expenses	110	398
Aircraft rent	104	100
Restructuring charges	(44)	0
Government grant recognition	(1,186)	0
Other	322	533
Total operating expense	5,548	9,002
Operating Loss	(1,398)	(410)
Non-Operating Expense:
Interest expense, net	(361)	(79)
Impairments and equity method losses	(54)	(260)
Gain/(loss) on investments, net	262	(112)
Miscellaneous, net	36	254
Total non-operating expense, net	(117)	(197)
Loss Before Income Taxes	(1,515)	(607)
Income Tax Benefit	338	73
Net Loss	$ (1,177)	$ (534)
Basic Loss Per Share (USD per share)	$ (1.85)	$ (0.84)
Diluted Loss Per Share (USD per share)	(1.85)	(0.84)
Cash Dividends Declared Per Share (USD per share)	$ 0	$ 0.40
Comprehensive Loss	$ (1,099)	$ (443)
Passenger
Operating Revenue:
Total operating revenue	2,748	7,569
Cargo
Operating Revenue:
Total operating revenue	215	152
Other
Operating Revenue:
Total operating revenue	$ 1,187	$ 871