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Consolidated Balance Sheets - USD ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | ---
Current assets: |  |  |
Cash and cash equivalents | $ 1,694 | $ 1,482 | [1]
Short-term investments | 2,256 | 2,316 | [1]
Receivables, less allowance for doubtful accounts (2018—$8; 2017—$7) | 1,346 | 1,340 | [1]
Aircraft fuel, spare parts and supplies, less obsolescence allowance (2018—$412; 2017—$354) | 985 | 924 | [1]
Prepaid expenses and other | 913 | 1,071 | [1]
Total current assets | 7,194 | 7,133 | [1]
Owned— |  |  |
Flight equipment | 31,607 | 28,692 | [1]
Other property and equipment | 7,919 | 6,946 | [1]
Total owned property and equipment | 39,526 | 35,638 | [1]
Less—Accumulated depreciation and amortization | (12,760) | (11,159) | [1]
Total owned property and equipment, net | 26,766 | 24,479 | [1]
Purchase deposits for flight equipment | 1,177 | 1,344 | [1]
Capital leases— |  |  |
Flight equipment | 1,029 | 1,151 | [1]
Other property and equipment | 11 | 11 | [1]
Total capital leases | 1,040 | 1,162 | [1]
Less—Accumulated amortization | (654) | (777) | [1]
Total capital leases, net | 386 | 385 | [1]
Total operating property and equipment, net | 28,329 | 26,208 | [1]
Other assets: |  |  |
Goodwill | 4,523 | 4,523 | [1]
Intangibles, less accumulated amortization (2018—$1,380; 2017—$1,313) | 3,159 | 3,539 | [1]
Restricted cash | 105 | 91 | [1]
Notes receivable, net | 516 | 46 | [1]
Investments in affiliates and other, net | 966 | 806 | [1]
Total other assets | 9,269 | 9,005 | [1]
Total assets | 44,792 | 42,346 | [1]
Current liabilities: |  |  |
Advance ticket sales | 4,381 | 3,940 | [1]
Frequent flyer deferred revenue | 2,286 | 2,192 | [1]
Accounts payable | 2,363 | 2,196 | [1]
Accrued salaries and benefits | 2,184 | 2,166 | [1]
Current maturities of long-term debt | 1,230 | 1,565 | [1]
Current maturities of capital leases | 149 | 128 | [1]
Other | 619 | 576 | [1]
Total current liabilities | 13,212 | 12,763 | [1]
Long-term debt | 12,215 | 11,703 | [1]
Long-term obligations under capital leases | 1,134 | 996 | [1]
Other liabilities and deferred credits: |  |  |
Frequent flyer deferred revenue | 2,719 | 2,591 | [1]
Postretirement benefit liability | 1,295 | 1,602 | [1]
Pension liability | 1,576 | 1,921 | [1]
Deferred income taxes | 814 | 204 | [1]
Other | 1,832 | 1,832 | [1]
Total other liabilities and deferred credits | 8,236 | 8,150 | [1]
Commitments and contingencies |  |  |
Stockholders' equity: |  |  |
Preferred stock | 0 | 0 | [1]
Common stock | 3 | 3 | [1]
Additional capital invested | 6,120 | 6,098 | [1]
Retained earnings | 6,668 | 4,549 | [1]
Stock held in treasury, at cost | (1,993) | (769) | [1]
Accumulated other comprehensive loss | (803) | (1,147) | [1]
Total stockholders' equity | 9,995 | 8,734 | [1]
Total liabilities and stockholders' equity | 44,792 | 42,346 | [1]
United Airlines, Inc. |  |  |
Current assets: |  |  |
Cash and cash equivalents | 1,688 | 1,476 | [2]
Short-term investments | 2,256 | 2,316 | [2]
Receivables, less allowance for doubtful accounts (2018—$8; 2017—$7) | 1,346 | 1,340 | [2]
Aircraft fuel, spare parts and supplies, less obsolescence allowance (2018—$412; 2017—$354) | 985 | 924 | [2]
Prepaid expenses and other | 913 | 1,071 | [2]
Total current assets | 7,188 | 7,127 | [2]
Owned— |  |  |
Flight equipment | 31,607 | 28,692 | [2]
Other property and equipment | 7,919 | 6,946 | [2]
Total owned property and equipment | 39,526 | 35,638 | [2]
Less—Accumulated depreciation and amortization | (12,760) | (11,159) | [2]
Total owned property and equipment, net | 26,766 | 24,479 | [2]
Purchase deposits for flight equipment | 1,177 | 1,344 | [2]
Capital leases— |  |  |
Flight equipment | 1,029 | 1,151 | [2]
Other property and equipment | 11 | 11 | [2]
Total capital leases | 1,040 | 1,162 | [2]
Less—Accumulated amortization | (654) | (777) | [2]
Total capital leases, net | 386 | 385 | [2]
Total operating property and equipment, net | 28,329 | 26,208 | [2]
Other assets: |  |  |
Goodwill | 4,523 | 4,523 | [2]
Intangibles, less accumulated amortization (2018—$1,380; 2017—$1,313) | 3,159 | 3,539 | [2]
Restricted cash | 105 | 91 | [2]
Notes receivable, net | 516 | 46 | [2]
Investments in affiliates and other, net | 966 | 806 | [2]
Total other assets | 9,269 | 9,005 | [2]
Total assets | 44,786 | 42,340 | [2]
Current liabilities: |  |  |
Advance ticket sales | 4,381 | 3,940 | [2]
Frequent flyer deferred revenue | 2,286 | 2,192 | [2]
Accounts payable | 2,363 | 2,196 | [2]
Accrued salaries and benefits | 2,184 | 2,166 | [2]
Current maturities of long-term debt | 1,230 | 1,565 | [2]
Current maturities of capital leases | 149 | 128 | [2]
Other | 624 | 581 | [2]
Total current liabilities | 13,217 | 12,768 | [2]
Long-term debt | 12,215 | 11,703 | [2]
Long-term obligations under capital leases | 1,134 | 996 | [2]
Other liabilities and deferred credits: |  |  |
Frequent flyer deferred revenue | 2,719 | 2,591 | [2]
Postretirement benefit liability | 1,295 | 1,602 | [2]
Pension liability | 1,576 | 1,921 | [2]
Deferred income taxes | 842 | 231 | [2]
Other | 1,831 | 1,832 | [2]
Total other liabilities and deferred credits | 8,263 | 8,177 | [2]
Commitments and contingencies |  |  |
Stockholders' equity: |  |  |
Common stock | 0 | 0 | [2]
Additional capital invested | 598 | 1,787 | [2]
Retained earnings | 10,272 | 8,146 | [2]
Accumulated other comprehensive loss | (803) | (1,147) | [2]
Receivable from related parties | (110) | (90) | [2]
Total stockholders' equity | 9,957 | 8,696 | [2]
Total liabilities and stockholders' equity | $ 44,786 | $ 42,340 | [2]
[1] | Amounts adjusted due to the adoption of Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers (Topic 606). 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. 2014-09, Revenue from Contracts with Customers (Topic 606). See Note 1 to the financial statements contained in Part II, Item 8 of this report for additional information.

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- Definition Amounts due from owners or affiliates of the reporting entity related to issuance of the entity's capital stock before cash payment is received (does not include amounts due from officers or directors). This element would also include the receivable for proceeds from the issuance of shares under employee stock option exercises which proceeds have not been received as of the reporting date due to the timing of the transaction date versus the settlement date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29,30) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-06(3)) -URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e604059-122996 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(5)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(30)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 4.E) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(31)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition The amount allocated to treasury stock. Treasury stock is common and preferred shares of an entity that were issued, repurchased by the entity, and are held in its treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.29,30) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6405834&loc=d3e23315-112656 + Details
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