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Supplemental Financial Information (Tables) | 12 Months Ended
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Dec. 31, 2014
Table Text Block [Abstract] |
Other Assets |
(in millions) |  | December 31, 2014 |  | December 31, 2013
Derivative contracts |  | $ | 13 |  |  | $ | 145 |
Intangible assets |  | 363 |  |  | 166 |
Non-current investments |  | 35 |  |  | 44 |
Other |  | 123 |  |  | 175 |
Other assets |  | $ | 534 |  |  | $ | 530 |
Accounts Payable |
(in millions) |  | December 31, 2014 |  | December 31, 2013
Accounts payable trade |  | $ | 123 |  |  | $ | 189 |
Salaries payable |  | 160 |  |  | 156 |
Taxes payable |  | 163 |  |  | 146 |
Aircraft maintenance payable |  | 314 |  |  | 331 |
Fuel payable |  | 85 |  |  | 102 |
Other payable |  | 358 |  |  | 323 |
Accounts payable |  | $ | 1,203 |  |  | $ | 1,247 |
Accrued Liabilities |
(in millions) |  | December 31, 2014 |  | December 31, 2013
Profitsharing and savings plans |  | $ | 374 |  |  | $ | 244 |
Aircraft and other lease related obligations |  | 159 |  |  | 173 |
Vacation pay |  | 292 |  |  | 278 |
Health |  | 84 |  |  | 73 |
Derivative contracts |  | 174 |  |  | 12 |
Workers compensation |  | 165 |  |  | 161 |
Property and other taxes |  | 81 |  |  | 65 |
Other |  | 236 |  |  | 223 |
Accrued liabilities |  | $ | 1,565 |  |  | $ | 1,229 |
Other Noncurrent Liabilities |
(in millions) |  | December 31, 2014 |  | December 31, 2013
Postretirement obligation |  | $ | 169 |  |  | $ | 138 |
Non-current lease-related obligations |  | 193 |  |  | 290 |
Other deferred compensation |  | 174 |  |  | 163 |
Deferred gains from sale and leaseback of aircraft |  | 53 |  |  | 65 |
Derivative contracts |  | 622 |  |  | 45 |
Other |  | 44 |  |  | 70 |
Other non-current liabilities |  | $ | 1,255 |  |  | $ | 771 |

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