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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Current Assets |  |
Cash and cash equivalents | $ 647 | $ 338
Marketable securities | 1,804 | 2,079
Total cash and marketable securities | 2,451 | 2,417
Receivables - net | 341 | 296
Inventories and supplies - net | 122 | 104
Prepaid expenses | 187 | 163
Asset, Held-for-Sale, Not Part of Disposal Group, Current | 385 | 3
Other Assets, Current | 158 | 57
Total Current Assets | 3,644 | 3,040
Property and Equipment |  |
Aircraft and other flight equipment | 10,015 | 9,053
Other property and equipment | 1,756 | 1,661
Deposits for future flight equipment | 538 | 670
Property and Equipment Total | 12,309 | 11,384
Less accumulated depreciation and amortization | 4,283 | 4,127
Total Property and Equipment - Net | 8,026 | 7,257
Operating Lease, Right-of-Use Asset | 1,171 | 1,471
Goodwill | 2,034 | 2,038
Other noncurrent assets | 290 | 380
Other Assets | 3,495 | 3,889
Total Assets | 15,165 | 14,186
Current Liabilities |  |
Accounts payable | 229 | 221
Accrued wages, vacation and payroll taxes | 561 | 619
Other accrued liabilities | 806 | 846
Operating Lease, Liability, Current | 150 | 228
Current portion of long-term debt | 736 | 276
Total Current Liabilities | 5,074 | 4,493
Long-Term Debt, Net of Current Portion | 2,128 | 1,883
Noncurrent Liabilities |  |
Operating Lease, Liability, Noncurrent | 1,113 | 1,393
Deferred Income Tax Liabilities, Net | 662 | 574
Deferred revenue, noncurrent | 1,366 | 1,374
Obligation for pension and postretirement medical benefits | 368 | 348
Other liabilities | 361 | 305
Other Liabilities and Credits Totals | 3,870 | 3,994
Commitments and Contingencies |  |
Shareholders' Equity |  |
Preferred stock, $0.01 par value, Authorized: 5,000,000 shares, none issued or outstanding | 0 | 0
Common stock, $0.01 par value, Authorized: 400,000,000 shares, Issued: 2021 - 133,792,045 shares; 2020 - 133,567,534 shares, Outstanding: 2021 - 124,442,101 shares; 2020 - 124,217,590 shares | 1 | 1
Capital in excess of par value | $ 659 | $ 577
Treasury Stock, Common, Shares | 10,884,473 | 9,349,944
Treasury stock (common), at cost: 2020 - 9,349,944 shares; 2020 - 9,349,944 shares | $ (744) | $ (674)
Accumulated other comprehensive loss | (360) | (388)
Retained earnings | 4,537 | 4,300
Total Shareholders' Equity | 4,093 | 3,816
Total Liabilities and Shareholders' Equity | 15,165 | 14,186
Mileage Plan Revenue [Member] |  |
Current Liabilities |  |
Contract with Customer, Liability, Current | 1,233 | 1,123
Contract with Customer, Liability, Current | 1,233 | 1,123
Passenger Revenue [Member] |  |
Current Liabilities |  |
Contract with Customer, Liability, Current | 1,359 | 1,180
Contract with Customer, Liability, Current | $ 1,359 | $ 1,180

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