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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions | Jun. 30, 2019 | Dec. 31, 2018
--- | --- | ---
Current Assets |  |
Cash and cash equivalents | $ 244 | $ 105
Marketable securities | 1,383 | 1,131
Total cash and marketable securities | 1,627 | 1,236
Receivables—net | 389 | 366
Inventories and supplies—net | 55 | 60
Prepaid expenses and other current assets | 147 | 125
Total Current Assets | 2,218 | 1,787
Property and Equipment |  |
Aircraft and other flight equipment | 8,417 | 8,221
Other property and equipment | 1,238 | 1,363
Deposits for future flight equipment | 396 | 439
Property and Equipment Total | 10,051 | 10,023
Less accumulated depreciation and amortization | 3,307 | 3,242
Total Property and Equipment - Net | 6,744 | 6,781
Operating Lease, Right-of-Use Asset | 1,696 | 0
Goodwill | 1,943 | 1,943
Intangible assets - net | 125 | 127
Other noncurrent assets | 225 | 274
Other Assets | 3,989 | 2,344
Total Assets | 12,951 | 10,912
Current Liabilities |  |
Accounts payable | 156 | 132
Accrued wages, vacation and payroll taxes | 371 | 415
Air traffic liability | 1,173 | 788
Other accrued liabilities | 505 | 416
Deferred revenue, current | 768 | 705
Operating Lease, Liability, Current | 273 | 0
Current portion of long-term debt | 288 | 486
Total Current Liabilities | 3,534 | 2,942
Long-Term Debt, Net of Current Portion | 1,538 | 1,617
Noncurrent Liabilities |  |
Operating Lease, Liability, Noncurrent | 1,424 | 0
Deferred income taxes | 582 | 512
Deferred revenue, noncurrent | 1,181 | 1,169
Obligation for pension and postretirement medical benefits | 522 | 503
Other liabilities | 197 | 418
Other Liabilities and Credits Totals | 3,906 | 2,602
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: 2019 - 131,365,855 shares; 2018 - 130,813,476 shares, Outstanding: 2019 - 123,338,144 shares; 2018 - 123,194,430 shares | 1 | 1
Capital in excess of par value | 270 | 232
Treasury stock (common), at cost: 2019 - 8,027,711 shares; 2018 - 7,619,046 shares | (593) | (568)
Accumulated other comprehensive loss | (422) | (448)
Retained earnings | 4,717 | 4,534
Total Shareholders' Equity | 3,973 | 3,751
Total Liabilities and Shareholders' Equity | $ 12,951 | $ 10,912

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