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Consolidated Balance Sheets (Unaudited) - USD ($) $ in Millions | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Current assets: |  |
Cash and cash equivalents | $ 12,666 | $ 11,269
Short-term investments | 309 | 414
Restricted cash | 254 | 255
Receivables, less allowance for credit losses (2021 — $74; 2020 — $78) | 1,389 | 1,295
Aircraft fuel, spare parts and supplies, less obsolescence allowance (2021 — $502; 2020 — $478) | 918 | 932
Prepaid expenses and other | 483 | 635
Total current assets | 16,019 | 14,800
Operating property and equipment: |  |
Flight equipment | 38,851 | 38,218
Other property and equipment | 8,581 | 8,511
Purchase deposits for flight equipment | 1,439 | 1,166
Total operating property and equipment | 48,871 | 47,895
Less — Accumulated depreciation and amortization | (16,956) | (16,429)
Total operating property and equipment, net | 31,915 | 31,466
Operating lease right-of-use assets | 4,516 | 4,537
Other assets: |  |
Goodwill | 4,527 | 4,527
Intangibles, less accumulated amortization (2021 — $1,507; 2020 — $1,495) | 2,840 | 2,838
Restricted cash | 218 | 218
Deferred income taxes | 520 | 131
Investments in affiliates and other, less allowance for credit losses (2021 — $526; 2020 — $522) | 1,107 | 1,031
Total other assets | 9,212 | 8,745
Total assets | 61,662 | 59,548
Current liabilities: |  |
Accounts payable | 1,838 | 1,595
Accrued salaries and benefits | 2,267 | 1,960
Advance ticket sales | 5,502 | 4,833
Frequent flyer deferred revenue | 1,251 | 908
Current maturities of long-term debt | 1,783 | 1,911
Current maturities of operating leases | 623 | 612
Current maturities of finance leases | 179 | 182
Other | 724 | 724
Total current liabilities | 14,167 | 12,725
Long-term debt | 25,849 | 24,836
Long-term obligations under finance leases | 240 | 224
Long-term obligations under operating leases | 4,985 | 4,986
Other liabilities and deferred credits: |  |
Frequent flyer deferred revenue | 4,858 | 5,067
Pension liability | 2,478 | 2,460
Postretirement benefit liability | 1,013 | 994
Other financial liabilities from sale-leasebacks | 1,568 | 1,140
Other | 1,298 | 1,156
Total other liabilities and deferred credits | 11,215 | 10,817
Commitments and contingencies |  |
Stockholders' equity: |  |
Preferred stock | 0 | 0
Common stock | 4 | 4
Additional capital invested | 8,923 | 8,366
Stock held in treasury, at cost | (3,834) | (3,897)
Retained earnings | 1,239 | 2,626
Accumulated other comprehensive loss | (1,126) | (1,139)
Total stockholders' equity | 5,206 | 5,960
Total liabilities and stockholders' equity | 61,662 | 59,548
United Airlines, Inc. |  |
Current assets: |  |
Cash and cash equivalents | 12,666 | 11,269
Short-term investments | 309 | 414
Restricted cash | 254 | 255
Receivables, less allowance for credit losses (2021 — $74; 2020 — $78) | 1,389 | 1,295
Aircraft fuel, spare parts and supplies, less obsolescence allowance (2021 — $502; 2020 — $478) | 918 | 932
Prepaid expenses and other | 483 | 635
Total current assets | 16,019 | 14,800
Operating property and equipment: |  |
Flight equipment | 38,851 | 38,218
Other property and equipment | 8,581 | 8,511
Purchase deposits for flight equipment | 1,439 | 1,166
Total operating property and equipment | 48,871 | 47,895
Less — Accumulated depreciation and amortization | (16,956) | (16,429)
Total operating property and equipment, net | 31,915 | 31,466
Operating lease right-of-use assets | 4,516 | 4,537
Other assets: |  |
Goodwill | 4,527 | 4,527
Intangibles, less accumulated amortization (2021 — $1,507; 2020 — $1,495) | 2,840 | 2,838
Restricted cash | 218 | 218
Deferred income taxes | 492 | 103
Investments in affiliates and other, less allowance for credit losses (2021 — $526; 2020 — $522) | 1,107 | 1,031
Total other assets | 9,184 | 8,717
Total assets | 61,634 | 59,520
Current liabilities: |  |
Accounts payable | 1,838 | 1,595
Accrued salaries and benefits | 2,267 | 1,960
Advance ticket sales | 5,502 | 4,833
Frequent flyer deferred revenue | 1,251 | 908
Current maturities of long-term debt | 1,783 | 1,911
Current maturities of operating leases | 623 | 612
Current maturities of finance leases | 179 | 182
Other | 727 | 728
Total current liabilities | 14,170 | 12,729
Long-term debt | 25,849 | 24,836
Long-term obligations under finance leases | 240 | 224
Long-term obligations under operating leases | 4,985 | 4,986
Other liabilities and deferred credits: |  |
Frequent flyer deferred revenue | 4,858 | 5,067
Pension liability | 2,478 | 2,460
Postretirement benefit liability | 1,013 | 994
Other financial liabilities from sale-leasebacks | 1,568 | 1,140
Other | 1,298 | 1,156
Total other liabilities and deferred credits | 11,215 | 10,817
Commitments and contingencies |  |
Stockholders' equity: |  |
Common stock | 0 | 0
Additional capital invested | 117 | 85
Retained earnings | 3,582 | 4,939
Accumulated other comprehensive loss | (1,126) | (1,139)
Payable to parent | 2,602 | 2,043
Total stockholders' equity | 5,175 | 5,928
Total liabilities and stockholders' equity | $ 61,634 | $ 59,520

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