Statements of Consolidated Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Net loss	$ (1,357)	$ (1,704)
Other comprehensive income (loss), net of tax:
Employee benefit plans	14	(41)
Investments and other	(1)	(12)
Total other comprehensive income (loss), net of tax	13	(53)
Total comprehensive loss, net	(1,344)	(1,757)
United Airlines, Inc.
Net loss	(1,357)	(1,704)
Other comprehensive income (loss), net of tax:
Employee benefit plans	14	(41)
Investments and other	(1)	(12)
Total other comprehensive income (loss), net of tax	13	(53)
Total comprehensive loss, net	$ (1,344)	$ (1,757)