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Supplemental Financial Information - Accounts Payable (Details) - USD ($) $ in Millions | Sep. 30, 2017 | Dec. 31, 2016
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Supplemental Financial Information - Accounts Payable [Abstract] |  |
Accounts payable trade | $ 165 | $ 138
Salaries payable | 175 | 200
Taxes payable | 180 | 184
Aircraft maintenance payable | 33 | 26
Fuel payable | 139 | 95
Other payables | 432 | 535
Accounts Payable, Current | $ 1,124 | $ 1,178

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- Definition Carrying value as of the balance sheet date of obligations incurred and payable for fuel. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References No definition available. + Details
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