Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Current Assets
Cash	$ 375	$ 283
Short-term investments	4,444	3,718
Restricted cash and short-term investments	771	738
Receivables, net	1,056	902
Inventories, net	619	617
Fuel derivative contracts	124	97
Other current assets	389	402
Total current assets	7,778	6,757
Equipment and Property
Flight equipment, net	10,800	11,041
Other equipment and property, net	2,114	2,126
Purchase deposits for flight equipment	682	746
Equipment and property, net	13,596	13,913
Equipment and Property Under Capital Leases
Flight equipment, net	253	323
Other equipment and property, net	69	70
Equipment and property under capital leases, net	322	393
International slots and route authorities	708	708
Domestic slots and airport operating and gate lease rights, less accumulated amortization, net	179	186
Other assets	1,928	1,891
Total Assets	24,511	23,848
Current Liabilities
Accounts payable	1,336	1,007
Accrued liabilities	1,700	1,882
Air traffic liability	4,848	4,223
Current maturities of long-term debt	1,593	1,518
Current obligations under capital leases	66
Total current liabilities	9,543	8,630
Long-term debt, less current maturities	6,575	6,702
Obligations under capital leases, less current obligations	316
Pension and postretirement benefits	77	9,204
Other liabilities, deferred gains and deferred credits	1,685	1,580
Liabilities Subject to Compromise	15,001	4,843
Stockholders' Equity (Deficit)
Preferred stock
Common stock	341	341
Additional paid-in capital	4,470	4,465
Treasury stock	(367)	(367)
Accumulated other comprehensive income (loss)	(3,884)	(3,964)
Accumulated deficit	(9,246)	(7,586)
Total stockholders' equity	(8,686)	(7,111)
Total Liabilities and Stockholders' Equity (Deficit)	$ 24,511	$ 23,848