Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 2,762	$ 1,694	[1]
Short-term investments	2,182	2,256	[1]
Receivables, less allowance for doubtful accounts (2019—$9; 2018—$8)	1,364	1,426	[1]
Aircraft fuel, spare parts and supplies, less obsolescence allowance (2019—$425; 2018—$412)	1,072	985	[1]
Prepaid expenses and other	814	733	[1]
Total current assets	8,194	7,094	[1]
Operating property and equipment:
Flight equipment	35,421	32,599	[1]
Other property and equipment	7,926	6,889	[1]
Purchase deposits for flight equipment	1,360	1,177	[1]
Total operating property and equipment	44,707	40,665	[1]
Less—Accumulated depreciation and amortization	(14,537)	(13,266)	[1]
Total operating property and equipment, net	30,170	27,399	[1]
Operating lease right-of-use assets	4,758	5,262	[1]
Other assets:
Goodwill	4,523	4,523	[1]
Intangibles, less accumulated amortization (2019—$1,440; 2018—$1,380)	3,009	3,159	[1]
Restricted cash	106	105	[1]
Notes receivable, net	671	516	[1]
Investments in affiliates and other, net	1,180	966	[1]
Total other assets	9,489	9,269	[1]
Total assets	52,611	49,024	[1]
Current liabilities:
Advance ticket sales	4,819	4,381	[1]
Accounts payable	2,703	2,363	[1]
Frequent flyer deferred revenue	2,440	2,286	[1]
Accrued salaries and benefits	2,271	2,184	[1]
Current maturities of long-term debt	1,407	1,230	[1]
Current maturities of finance leases	46	123	[1]
Current maturities of operating leases	686	719	[1]
Other	566	553	[1]
Total current liabilities	14,938	13,839	[1]
Long-term debt	13,145	12,215	[1]
Long-term obligations under finance leases	220	224	[1]
Long-term obligations under operating leases	4,946	5,276	[1]
Other liabilities and deferred credits:
Frequent flyer deferred revenue	2,836	2,719	[1]
Postretirement benefit liability	789	1,295	[1]
Pension liability	1,446	1,576	[1]
Deferred income taxes	1,736	828	[1]
Other	1,024	1,010	[1]
Total other liabilities and deferred credits	7,831	7,428	[1]
Commitments and contingencies			[1]
Stockholders' equity:
Preferred stock	0	0	[1]
Common stock	3	3	[1]
Additional capital invested	6,129	6,120	[1]
Stock held in treasury, at cost	(3,599)	(1,993)	[1]
Retained earnings	9,716	6,715	[1]
Accumulated other comprehensive loss	(718)	(803)	[1]
Total stockholders' equity	11,531	10,042	[1]
Total liabilities and stockholders' equity	52,611	49,024	[1]
United Airlines, Inc.
Current assets:
Cash and cash equivalents	2,756	1,688	[2]
Short-term investments	2,182	2,256	[2]
Receivables, less allowance for doubtful accounts (2019—$9; 2018—$8)	1,364	1,426	[2]
Aircraft fuel, spare parts and supplies, less obsolescence allowance (2019—$425; 2018—$412)	1,072	985	[2]
Prepaid expenses and other	814	733	[2]
Total current assets	8,188	7,088	[2]
Operating property and equipment:
Flight equipment	35,421	32,599	[2]
Other property and equipment	7,926	6,889	[2]
Purchase deposits for flight equipment	1,360	1,177	[2]
Total operating property and equipment	44,707	40,665	[1]
Less—Accumulated depreciation and amortization	(14,537)	(13,266)	[1]
Total operating property and equipment, net	30,170	27,399	[1]
Operating lease right-of-use assets	4,758	5,262	[2]
Other assets:
Goodwill	4,523	4,523	[2]
Intangibles, less accumulated amortization (2019—$1,440; 2018—$1,380)	3,009	3,159	[2]
Restricted cash	106	105	[2]
Notes receivable, net	671	516	[2]
Investments in affiliates and other, net	1,180	966	[2]
Total other assets	9,489	9,269	[2]
Total assets	52,605	49,018	[2]
Current liabilities:
Advance ticket sales	4,819	4,381	[2]
Accounts payable	2,703	2,363	[2]
Frequent flyer deferred revenue	2,440	2,286	[2]
Accrued salaries and benefits	2,271	2,184	[2]
Current maturities of long-term debt	1,407	1,230	[2]
Current maturities of finance leases	46	123	[2]
Current maturities of operating leases	686	719	[2]
Other	571	558	[2]
Total current liabilities	14,943	13,844	[2]
Long-term debt	13,145	12,215	[2]
Long-term obligations under finance leases	220	224	[2]
Long-term obligations under operating leases	4,946	5,276	[2]
Other liabilities and deferred credits:
Frequent flyer deferred revenue	2,836	2,719	[2]
Postretirement benefit liability	789	1,295	[2]
Pension liability	1,446	1,576	[2]
Deferred income taxes	1,763	855	[2]
Other	1,025	1,010	[2]
Total other liabilities and deferred credits	7,859	7,455	[2]
Commitments and contingencies			[2]
Stockholders' equity:
Common stock	0	0	[2]
Additional capital invested	0	598	[2]
Retained earnings	12,353	10,319	[2]
Accumulated other comprehensive loss	(718)	(803)	[2]
Receivable from related parties	(143)	(110)	[2]
Total stockholders' equity	11,492	10,004	[2]
Total liabilities and stockholders' equity	$ 52,605	$ 49,018	[2]

[1] Amounts adjusted due to the adoption of Accounting Standards Update No. 2016-02, Leases (Topic 842). See Note 1 to the financial statements contained in Part II, Item 8 of this report for additional information.

[2] Amounts adjusted due to the adoption of Accounting Standards Update No. 2016-02, Leases (Topic 842). See Note 1 to the financial statements contained in Part II, Item 8 of this report for additional information.