Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Current Assets:
Cash and cash equivalents	$ 10,357	$ 8,307
Short-term investments	4,873	5,789
Accounts receivable, net of an allowance for uncollectible accounts of $80 and $89	2,258	1,396
Fuel inventory	641	377
Expendable parts and supplies inventories, net of an allowance for obsolescence of $178 and $188	364	355
Prepaid expenses and other	1,173	1,180
Total current assets	19,666	17,404
Noncurrent Assets:
Property and equipment, net of accumulated depreciation and amortization of $18,477 and $17,511	27,508	26,529
Operating lease right-of-use assets	5,653	5,733
Goodwill	9,753	9,753
Identifiable intangibles, net of accumulated amortization of $888 and $883	6,006	6,011
Cash restricted for airport construction	929	1,556
Equity investments	2,143	1,665
Deferred income taxes, net	2,158	1,988
Other noncurrent assets	1,493	1,357
Total noncurrent assets	55,643	54,592
Total assets	75,309	71,996
Current Liabilities:
Current maturities of debt and finance leases	2,372	1,732
Current maturities of operating leases	638	678
Accounts payable	3,930	2,840
Accrued salaries and related benefits	2,215	2,086
Fuel card obligation	1,100	1,100
Other accrued liabilities	3,763	1,670
Total current liabilities	23,573	15,927
Noncurrent Liabilities:
Debt and finance leases	26,679	27,425
Pension, postretirement and related benefits	8,644	10,630
Noncurrent operating leases	5,633	5,713
Other noncurrent liabilities	4,715	4,862
Total noncurrent liabilities	50,455	54,535
Commitments and Contingencies
Stockholders' Equity:
Common stock at $0.0001 par value; 1,500,000,000 shares authorized, 649,637,387 and 647,352,203 shares issued	0	0
Additional paid-in capital	11,396	11,259
Accumulated deficit	(953)	(428)
Accumulated other comprehensive loss	(8,882)	(9,038)
Treasury stock, at cost, 9,722,509 and 9,169,683 shares	(280)	(259)
Total stockholders' equity	1,281	1,534
Total liabilities and stockholders' equity	75,309	71,996
Air traffic
Current Liabilities:
Deferred revenue liability, current	6,798	4,044
Noncurrent Liabilities:
Deferred revenue liability, noncurrent	140	500
Loyalty program
Current Liabilities:
Deferred revenue liability, current	2,757	1,777
Noncurrent Liabilities:
Deferred revenue liability, noncurrent	$ 4,644	$ 5,405