Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating Revenue	$ 22,428	$ 21,965	$ 21,146
Net income	2,300	2,465	3,357
Unrealized gain (loss) on defined benefit plan items, net of deferred taxes of ($9), $15, and $2	(29)	52	3
Other, net of deferred taxes of $8, ($2), and $5	26	(6)	8
OTHER COMPREHENSIVE INCOME (LOSS)	(81)	26	335
COMPREHENSIVE INCOME	2,219	2,491	3,692
Fuel derivatives
Unrealized gain (loss) on derivatives, net of tax	(53)	(26)	317
Interest rate derivatives
Unrealized gain (loss) on derivatives, net of tax	(25)	6	7
Passenger
Operating Revenue	20,776	20,455	19,763
Freight
Operating Revenue	172	175	173
Other
Operating Revenue	$ 1,480	$ 1,335	$ 1,210