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CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Current Assets |  |
Cash and cash equivalents | $ 281 | $ 338
Marketable securities | 1,510 | 2,079
Total cash and marketable securities | 1,791 | 2,417
Receivables - net | 383 | 296
Inventories and supplies - net | 116 | 104
Prepaid Expense | 176 | 163
Other Assets, Current | 239 | 60
Total Current Assets | 2,705 | 3,040
Property and Equipment |  |
Aircraft and other flight equipment | 10,425 | 9,053
Other property and equipment | 1,814 | 1,661
Deposits for future flight equipment | 491 | 670
Property and Equipment | 12,730 | 11,384
Less accumulated depreciation and amortization | 4,342 | 4,127
Total Property and Equipment - Net | 8,388 | 7,257
Other Assets |  |
Operating Lease, Right-of-Use Asset | 1,195 | 1,471
Goodwill and intangible assets | 2,033 | 2,038
Other noncurrent assets | 292 | 380
Total Other Assets | 3,520 | 3,889
Total Assets | 14,613 | 14,186
Current Liabilities |  |
Accounts payable | 207 | 221
Accrued wages, vacation and payroll taxes | 584 | 619
Other accrued liabilities | 800 | 846
Operating Lease, Liability, Current | 158 | 228
Current portion of long-term debt | 353 | 276
Total Current Liabilities | 4,459 | 4,493
Long-Term Debt, Net of Current Portion | 2,182 | 1,883
Other Liabilities and Credits |  |
Operating Lease, Liability, Noncurrent | 1,125 | 1,393
Deferred Income Tax Liabilities, Net | 695 | 574
Deferred revenue | 1,382 | 1,374
Obligation for pension and postretirement medical benefits | 362 | 348
Other liabilities | 295 | 305
Total Other Liabilities and Credits | 3,859 | 3,994
Commitments and Contingencies |  |
Preferred stock, par value | $ 0.01 |
Preferred stock, shares authorized | 5,000,000 |
Shareholders' Equity |  |
Preferred stock, $0.01 par value, Authorized: 5,000,000 shares, none issued or outstanding | $ 0 | $ 0
Common stock, shares, outstanding | 126,090,353 | 127,533,916
Common stock, shares issued | 138,960,830 | 136,883,042
Common stock, $0.01 par value, Authorized: 400,000,000 shares, Issued: 2023 - 138,960,830 shares; 2022 - 136,883,042 shares, Outstanding: 2023 - 126,090,353 shares; 2022 - 127,533,916 shares | $ 1 | $ 1
Capital in excess of par value | $ 695 | $ 577
Treasury Stock, Common, Shares | 9,349,944 | 12,870,477
Treasury stock (common), at cost: 2023 - 12,870,477 shares; 2022 - 9,349,944 shares | $ (819) | $ (674)
Accumulated other comprehensive loss | (299) | (388)
Retained earnings | 4,535 | 4,300
Shareholders' Equity Total | 4,113 | 3,816
Total Liabilities and Shareholders' Equity | $ 14,613 | 14,186
Common stock, shares authorized | 400,000,000 |
Common stock, par value | $ 0.01 |
Air Traffic Liability |  |
Current Liabilities |  |
Air traffic liability | $ 1,136 | 1,180
Mileage Plan Revenue [Member] |  |
Current Liabilities |  |
Air traffic liability | $ 1,221 | $ 1,123

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