Consolidated Balance Sheets (USD $) In Millions, unless otherwise specified	Mar. 31, 2013		Dec. 31, 2012
Current Assets
Cash	$ 599		$ 474
Short-term investments	3,636		3,408
Restricted cash and short-term investments	853	[1]	850
Receivables, net	1,223		1,105
Inventories, net	565		550
Fuel derivative contracts	66	[1]	65
Other current assets	529		559
Total current assets	7,471		7,011
Equipment and Property
Flight Equipment Owned, Net	10,094		10,185
Other equipment and property, net	2,079		2,081
Purchase deposits for flight equipment	721		710
Equipment and property, net	12,894		12,976
Equipment and Property Under Capital Leases
Flight equipment, net	212		222
Other equipment and property, net	56		60
Equipment and property under capital leases, net	268		282
International slots and route authorities	708		708
Domestic slots and airport operating and gate lease rights, less accumulated amortization, net	155		161
Other assets	2,119		2,126
Total Assets	23,615		23,264
Current Liabilities
Accounts payable	1,408		1,212
Accrued liabilities	1,984		2,010
Air traffic liability	5,180		4,524
Due to Affiliate, Current	2,754		2,753
Current maturities of long-term debt	1,256		1,388
Current obligations under capital leases	29		31
Total current liabilities	12,611		11,918
Long-term debt, less current maturities	6,673		6,762
Obligations under capital leases, less current obligations	375		381
Pension and postretirement benefits	6,730		6,780
Other liabilities, deferred gains and deferred credits	1,708		1,691
Liabilities Subject to Compromise	5,783		5,694
Stockholders' Equity (Deficit)
Common stock	0		0
Additional paid-in capital	4,470		4,469
Accumulated other comprehensive income (loss)	(3,138)		(3,088)
Accumulated deficit	(11,597)		(11,343)
Total stockholders' equity	(10,265)		(9,962)
Total Liabilities and Stockholders' Equity (Deficit)	$ 23,615		$ 23,264

[1] 1 Unrealized gains or losses on short-term investments, restricted cash and short-term investments and derivatives qualifying for hedge accounting are recorded in Accumulated other comprehensive income (loss) at each measurement date.