Statements of Consolidated Operations (Unaudited) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Operating revenue:
Operating revenue	$ 7,566	$ 3,221
Operating expense:
Salaries and related costs	2,787	2,224
Aircraft fuel	2,230	851
Landing fees and other rent	612	519
Depreciation and amortization	611	623
Regional capacity purchase	565	479
Aircraft maintenance materials and outside repairs	407	269
Distribution expenses	226	85
Aircraft rent	61	55
Special charges (credits)	(8)	(1,377)
Other operating expenses	1,451	874
Total operating expense	8,942	4,602
Operating loss	(1,376)	(1,381)
Nonoperating income (expense):
Interest expense	(424)	(353)
Interest capitalized	24	17
Interest income	5	7
Unrealized losses on investments, net	0	(22)
Miscellaneous, net	19	(19)
Total nonoperating expense, net	(376)	(370)
Loss before income tax benefit	(1,752)	(1,751)
Income tax benefit	(375)	(394)
Net loss	(1,377)	(1,357)
United Airlines, Inc.
Operating revenue:
Operating revenue	7,566	3,221
Operating expense:
Salaries and related costs	2,787	2,224
Aircraft fuel	2,230	851
Landing fees and other rent	612	519
Depreciation and amortization	611	623
Regional capacity purchase	565	479
Aircraft maintenance materials and outside repairs	407	269
Distribution expenses	226	85
Aircraft rent	61	55
Special charges (credits)	(8)	(1,377)
Other operating expenses	1,450	874
Total operating expense	8,941	4,602
Operating loss	(1,375)	(1,381)
Nonoperating income (expense):
Interest expense	(424)	(353)
Interest capitalized	24	17
Interest income	5	7
Unrealized losses on investments, net	0	(22)
Miscellaneous, net	19	(19)
Total nonoperating expense, net	(376)	(370)
Loss before income tax benefit	(1,751)	(1,751)
Income tax benefit	(374)	(394)
Net loss	(1,377)	(1,357)
Passenger revenue
Operating revenue:
Operating revenue	6,348	2,316
Passenger revenue | United Airlines, Inc.
Operating revenue:
Operating revenue	6,348	2,316
Cargo
Operating revenue:
Operating revenue	627	497
Cargo | United Airlines, Inc.
Operating revenue:
Operating revenue	627	497
Other operating revenue
Operating revenue:
Operating revenue	591	408
Other operating revenue | United Airlines, Inc.
Operating revenue:
Operating revenue	$ 591	$ 408