Statements of Consolidated Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net income (loss)	$ (7,069)	$ 3,009	$ 2,122
Other comprehensive income (loss), net of tax:
Employee benefit plans	(421)	80	342
Investments and other	0	5	(4)
Total other comprehensive income (loss), net of tax	(421)	85	338
Total comprehensive income (loss), net	(7,490)	3,094	2,460
United Airlines, Inc.
Net income (loss)	(7,067)	3,011	2,123
Other comprehensive income (loss), net of tax:
Employee benefit plans	(421)	80	342
Investments and other	0	5	(4)
Total other comprehensive income (loss), net of tax	(421)	85	338
Total comprehensive income (loss), net	$ (7,488)	$ 3,096	$ 2,461