Consolidated Balance Sheet - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 1,583	$ 1,282
Short-term investments	1,468	1,706
Accounts and other receivables	474	365
Inventories of parts and supplies, at cost	311	342
Prepaid expenses and other current assets	188	232
Total current assets	4,024	3,927
Property and equipment, at cost:
Flight equipment	19,462	18,473
Ground property and equipment	3,219	2,853
Deposits on flight equipment purchase contracts	1,089	566
Assets constructed for others	915	621
Property and equipment, at cost	24,685	22,513
Less allowance for depreciation and amortization	9,084	8,221
Property and equipment, net	15,601	14,292
Goodwill	970	970
Other assets	717	534
Total assets	21,312	19,723
Current liabilities:
Accounts payable	1,188	1,203
Accrued liabilities	2,591	1,565
Air traffic liability	2,990	2,897
Current maturities of long-term debt	637	258
Total current liabilities	7,406	5,923
Long-term debt less current maturities	2,541	2,434
Deferred income taxes	2,490	2,782
Construction obligation	757	554
Other noncurrent liabilities	760	1,255
Stockholders' equity:
Common stock, $1.00 par value: 2,000,000,000 shares authorized; 807,611,634 shares issued in 2015 and 2014	808	808
Capital in excess of par value	1,374	1,315
Retained earnings	9,409	7,416
Accumulated Other Comprehensive Income (Loss), Net of Tax	(1,051)	(738)
Treasury stock, at cost: 160,010,017 and 132,017,550 shares in 2015 and 2014 respectively	(3,182)	(2,026)
Total stockholders' equity	7,358	6,775
Total liabilities and stockholders' equity	$ 21,312	$ 19,723