Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Current Assets:
Cash and cash equivalents	$ 7,933	$ 8,307
Short-term investments	3,386	5,789
Accounts receivable, net of an allowance for uncollectible accounts of $50 and $89	2,404	1,396
Fuel inventory	694	377
Expendable parts and supplies inventories, net of an allowance for obsolescence of $176 and $188	404	355
Prepaid expenses and other	1,119	1,180
Total current assets	15,940	17,404
Noncurrent Assets:
Property and equipment, net of accumulated depreciation and amortization of $18,671 and $17,511	28,749	26,529
Operating lease right-of-use assets	7,237	5,733
Goodwill	9,753	9,753
Identifiable intangibles, net of accumulated amortization of $893 and $883	6,001	6,011
Cash restricted for airport construction	473	1,556
Equity investments	1,712	1,665
Deferred income taxes, net	1,294	1,988
Other noncurrent assets	1,300	1,357
Total noncurrent assets	56,519	54,592
Total assets	72,459	71,996
Current Liabilities:
Current maturities of debt and finance leases	1,782	1,732
Current maturities of operating leases	703	678
Accounts payable	4,240	2,840
Accrued salaries and related benefits	2,457	2,086
Fuel card obligation	1,100	1,100
Other accrued liabilities	1,746	1,670
Total current liabilities	20,966	15,927
Noncurrent Liabilities:
Debt and finance leases	25,138	27,425
Pension, postretirement and related benefits	6,035	10,630
Noncurrent operating leases	7,056	5,713
Other noncurrent liabilities	4,398	4,862
Total noncurrent liabilities	47,606	54,535
Commitments and Contingencies
Stockholders' Equity:
Common stock at $0.0001 par value; 1,500,000,000 shares authorized, 649,720,387 and 647,352,203 shares issued	0	0
Additional paid-in capital	11,447	11,259
Accumulated deficit	(148)	(428)
Accumulated other comprehensive loss	(7,130)	(9,038)
Treasury stock, at cost, 9,752,872 and 9,169,683	(282)	(259)
Total stockholders' equity	3,887	1,534
Total liabilities and stockholders' equity	72,459	71,996
Air traffic
Current Liabilities:
Deferred revenue liability, current	6,228	4,044
Noncurrent Liabilities:
Deferred revenue liability, noncurrent	130	500
Loyalty program
Current Liabilities:
Deferred revenue liability, current	2,710	1,777
Noncurrent Liabilities:
Deferred revenue liability, noncurrent	$ 4,849	$ 5,405