Condensed Consolidated Balance Sheet - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Current assets:
Cash and cash equivalents	$ 1,772	$ 1,282
Short-term investments	1,360	1,706
Accounts and other receivables	462	365
Inventories of parts and supplies, at cost	326	342
Deferred income taxes	421	477
Prepaid expenses and other current assets	255	232
Total current assets	4,596	4,404
Property and equipment, at cost:
Flight equipment	19,148	18,473
Ground property and equipment	2,972	2,853
Deposits on flight equipment purchase contracts	658	566
Assets constructed for others	745	621
Property and equipment, at cost	23,523	22,513
Less allowance for depreciation and amortization	8,663	8,221
Property and equipment, net	14,860	14,292
Goodwill	970	970
Other assets	649	534
Total assets	21,075	20,200
Current liabilities:
Accounts payable	1,134	1,203
Accrued liabilities	1,651	1,565
Air traffic liability	3,815	2,897
Current maturities of long-term debt	276	258
Total current liabilities	6,876	5,923
Long-term debt less current maturities	2,411	2,434
Deferred income taxes	3,290	3,259
Construction obligation	632	554
Other noncurrent liabilities	708	1,255
Stockholders' equity:
Common stock	808	808
Capital in excess of par value	1,319	1,315
Retained earnings	8,387	7,416
Accumulated other comprehensive loss	(664)	(738)
Treasury stock, at cost	(2,692)	(2,026)
Total stockholders' equity	7,158	6,775
Total liabilities and stockholders' equity	$ 21,075	$ 20,200