Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 2,959	$ 1,694	[1]
Short-term investments	2,167	2,256	[1]
Receivables, less allowance for doubtful accounts (2019 — $11; 2018 — $8)	1,617	1,426	[1]
Aircraft fuel, spare parts and supplies, less obsolescence allowance (2019 — $403; 2018 — $412)	1,065	985	[1]
Prepaid expenses and other	725	733	[1]
Total current assets	8,533	7,094	[1]
Operating property and equipment:
Flight equipment	34,413	32,599	[1]
Other property and equipment	7,626	6,889	[1]
Purchase deposits for flight equipment	1,446	1,177	[1]
Total operating property and equipment, at cost	43,485	40,665	[1]
Less — Accumulated depreciation and amortization	(14,153)	(13,266)	[1]
Total operating property and equipment, net	29,332	27,399	[1]
Operating lease right-of-use assets	4,937	5,262	[1]
Other assets:
Goodwill	4,523	4,523	[1]
Intangibles, less accumulated amortization (2019 — $1,425; 2018 — $1,380)	3,114	3,159	[1]
Restricted cash	100	105	[1]
Notes receivable, net	529	516	[1]
Investments in affiliates and other, net	1,131	966	[1]
Total other assets	9,397	9,269	[1]
Total assets	52,199	49,024	[1]
Current liabilities:
Accounts payable	2,848	2,363	[1]
Accrued salaries and benefits	2,104	2,184	[1]
Current maturities of long-term debt	1,243	1,230	[1]
Current maturities of finance leases	92	123	[1]
Current maturities of operating leases	778	719	[1]
Other	574	553	[1]
Total current liabilities	15,691	13,839	[1]
Long-term debt	12,900	12,215	[1]
Long-term obligations under finance leases	186	224	[1]
Long-term obligations under operating leases	4,941	5,276	[1]
Other liabilities and deferred credits:
Postretirement benefit liability	836	1,295	[1]
Pension liability	1,087	1,576	[1]
Deferred income taxes	1,594	828	[1]
Other	981	1,010	[1]
Total other liabilities and deferred credits	7,180	7,428	[1]
Commitments and contingencies			[1]
Stockholders' equity:
Preferred stock	0	0	[1]
Common stock at par, $0.01 par value; authorized 1,000,000,000 shares; outstanding 253,624,406 and 269,914,769 shares at September 30, 2019 and December 31, 2018, respectively	3	3	[1]
Additional capital invested	6,111	6,120	[1]
Retained earnings	9,075	6,715	[1]
Stock held in treasury, at cost	(3,384)	(1,993)	[1]
Accumulated other comprehensive loss	(504)	(803)	[1]
Total stockholders' equity	11,301	10,042	[1],[2]
Total liabilities and stockholders' equity	52,199	49,024	[1]
United Airlines, Inc.
Current assets:
Cash and cash equivalents	2,953	1,688	[3]
Short-term investments	2,167	2,256	[3]
Receivables, less allowance for doubtful accounts (2019 — $11; 2018 — $8)	1,617	1,426	[3]
Aircraft fuel, spare parts and supplies, less obsolescence allowance (2019 — $403; 2018 — $412)	1,065	985	[3]
Prepaid expenses and other	725	733	[3]
Total current assets	8,527	7,088	[3]
Operating property and equipment:
Flight equipment	34,413	32,599	[3]
Other property and equipment	7,626	6,889	[3]
Purchase deposits for flight equipment	1,446	1,177	[3]
Total operating property and equipment, at cost	43,485	40,665	[3]
Less — Accumulated depreciation and amortization	(14,153)	(13,266)	[3]
Total operating property and equipment, net	29,332	27,399	[3]
Operating lease right-of-use assets	4,937	5,262	[3]
Other assets:
Goodwill	4,523	4,523	[3]
Intangibles, less accumulated amortization (2019 — $1,425; 2018 — $1,380)	3,114	3,159	[3]
Restricted cash	100	105	[3]
Notes receivable, net	529	516	[3]
Investments in affiliates and other, net	1,131	966	[3]
Total other assets	9,397	9,269	[3]
Total assets	52,193	49,018	[3]
Current liabilities:
Accounts payable	2,848	2,363	[3]
Accrued salaries and benefits	2,104	2,184	[3]
Current maturities of long-term debt	1,243	1,230	[3]
Current maturities of finance leases	92	123	[3]
Current maturities of operating leases	778	719	[3]
Other	579	558	[3]
Total current liabilities	15,696	13,844	[3]
Long-term debt	12,900	12,215	[3]
Long-term obligations under finance leases	186	224	[3]
Long-term obligations under operating leases	4,941	5,276	[3]
Other liabilities and deferred credits:
Postretirement benefit liability	836	1,295	[3]
Pension liability	1,087	1,576	[3]
Deferred income taxes	1,622	855	[3]
Other	980	1,010	[3]
Total other liabilities and deferred credits	7,207	7,455	[3]
Commitments and contingencies			[3]
Stockholders' equity:
Common stock at par, $0.01 par value; authorized 1,000,000,000 shares; outstanding 253,624,406 and 269,914,769 shares at September 30, 2019 and December 31, 2018, respectively	0	0	[3]
Additional capital invested	0	598	[3]
Retained earnings	11,909	10,319	[3]
Accumulated other comprehensive loss	(504)	(803)	[3]
Receivable from related parties	(142)	(110)	[3]
Total stockholders' equity	11,263	10,004	[3],[4]
Total liabilities and stockholders' equity	52,193	49,018	[3]
Advance ticket sales
Current liabilities:
Deferred revenue	5,515	4,381	[1]
Advance ticket sales | United Airlines, Inc.
Current liabilities:
Deferred revenue	5,515	4,381	[3]
Frequent flyer deferred revenue
Current liabilities:
Deferred revenue	2,537	2,286	[1]
Other liabilities and deferred credits:
Deferred revenue	2,682	2,719	[1]
Frequent flyer deferred revenue | United Airlines, Inc.
Current liabilities:
Deferred revenue	2,537	2,286	[3]
Other liabilities and deferred credits:
Deferred revenue	$ 2,682	$ 2,719	[3]

[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 I, Item 1 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 I, Item 1 of this report for additional information.

[3] 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 I, Item 1 of this report for additional information.

[4] 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 I, Item 1 of this report for additional information.