Condensed Consolidated Statements of Operations and Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Operating Revenue:
Total operating revenue	$ 12,560	$ 11,953	$ 35,568	$ 33,696
Operating Expense:
Salaries and related costs	2,884	2,753	8,275	8,004
Aircraft fuel and related taxes	2,239	2,498	6,508	6,693
Regional carriers expense, excluding fuel	900	885	2,698	2,586
Contracted services	685	562	1,974	1,646
Depreciation and amortization	631	573	1,960	1,759
Passenger commissions and other selling expenses	539	535	1,505	1,473
Aircraft maintenance materials and outside repairs	424	371	1,334	1,233
Landing fees and other rents	460	439	1,321	1,254
Profit sharing	517	399	1,256	991
Ancillary businesses and refinery	279	410	945	1,396
Passenger service	345	329	938	892
Aircraft rent	110	99	318	291
Other	476	455	1,317	1,305
Total operating expense	10,489	10,308	30,349	29,523
Operating Income	2,071	1,645	5,219	4,173
Non-Operating (Expense)/Income:
Interest expense, net	(70)	(73)	(228)	(244)
Unrealized gain/(loss) on investments, net	(35)	50	(17)	(171)
Miscellaneous, net	(19)	66	(174)	48
Total non-operating (expense)/income, net	(124)	43	(419)	(367)
Income Before Income Taxes	1,947	1,688	4,800	3,806
Income Tax Provision	(452)	(366)	(1,131)	(890)
Net Income	$ 1,495	$ 1,322	$ 3,669	$ 2,916
Basic Earnings Per Share (USD per share)	$ 2.32	$ 1.93	$ 5.61	$ 4.20
Diluted Earnings Per Share (USD per share)	2.31	1.92	5.59	4.18
Cash Dividends Declared Per Share (USD per share)	$ 0.40	$ 0.35	$ 1.10	$ 0.96
Comprehensive Income	$ 1,545	$ 1,393	$ 3,849	$ 3,002
Passenger
Operating Revenue:
Total operating revenue	11,410	10,796	32,032	30,107
Cargo
Operating Revenue:
Total operating revenue	189	226	567	651
Other
Operating Revenue:
Total operating revenue	$ 961	$ 931	$ 2,969	$ 2,938