Condensed Consolidated Balance Sheets (USD $) In Millions	Sep. 30, 2011	Dec. 31, 2010
Current Assets
Cash	$ 304	$ 168
Short-term investments	3,992	4,328
Restricted cash and short-term investments	474	450
Receivables, net	925	738
Inventories, net	631	594
Fuel derivative contracts	137	269
Other current assets	375	291
Total current assets	6,838	6,838
Equipment and Property
Flight equipment, net	11,897	12,264
Other equipment and property, net	2,117	2,199
Purchase deposits for flight equipment	728	375
Equipment and property, net	14,742	14,838
Equipment and Property Under Capital Leases
Flight equipment, net	338	194
Other equipment and property, net	62	50
Equipment and property under capital leases, net	400	244
International slots and route authorities	708	708
Domestic slots and airport operating and gate lease rights, less accumulated amortization, net	204	224
Other assets	1,827	2,236
Total assets	24,719	25,088
Liabilities and Stockholders' Equity (Deficit)
Accounts payable	1,150	1,156
Accrued liabilities	1,928	2,085
Air traffic liability	4,392	3,656
Current maturities of long-term debt	1,374	1,776
Current obligations under capital leases	79	107
Total current liabilities	8,923	8,780
Long-term debt, less current maturities	9,552	8,756
Obligations under capital leases, less current obligations	615	497
Pension and postretirement benefits	7,875	7,877
Other liabilities, deferred gains and deferred credits	2,587	3,123
Stockholders' Equity (Deficit)
Preferred stock
Common stock	341	339
Additional paid-in capital	4,467	4,445
Treasury stock	(367)	(367)
Accumulated other comprehensive income (loss)	(2,783)	(2,755)
Accumulated deficit	(6,491)	(5,607)
Total stockholders' equity	(4,833)	(3,945)
Total liabilities and stockholders' equity (deficit)	$ 24,719	$ 25,088