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Leases (Tables) | 12 Months Ended
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Dec. 31, 2017
Leases [Abstract] |
Capital Leases Aircraft Included In Property And Equipment | Amounts applicable to these aircraft on capital lease that are included in property and equipment were:
(in millions) |  | 2017 |  | 2016
Flight equipment |  | $ | 1,207 |  |  | $ | 923 |
Less: accumulated amortization |  | 172 |  |  | 82 |
|  | $ | 1,035 |  |  | $ | 841 |
Future Minimum Lease Payments Under Capital Leases And Noncancelable Operating Leases |
(in millions) |  | Capital leases |  | Operating leases (b) |  | Subleases |  | Operating leases, net
2018 |  | $ | 107 |  |  | $ | 359 |  |  | $ | (102 | ) |  | $ | 257 |
2019 |  | 106 |  |  | 331 |  |  | (98 | ) |  | 233 |
2020 |  | 105 |  |  | 264 |  |  | (78 | ) |  | 186 |
2021 |  | 100 |  |  | 155 |  |  | (41 | ) |  | 114 |
2022 |  | 96 |  |  | 85 |  |  | (17 | ) |  | 68 |
Thereafter |  | 416 |  |  | 177 |  |  | (8 | ) |  | 169 |
Total minimum lease payments |  | $ | 930 |  |  | $ | 1,371 |  |  | $ | (344 | ) |  | $ | 1,027 |
Less amount representing interest |  | 150 |  |  |  |  |  |  |
Present value of minimum lease payments (a) |  | 780 |  |  |  |  |  |  |
Less current portion |  | 79 |  |  |  |  |  |  |
Long-term portion |  | $ | 701 |  |  |  |  |  |  |
* See Note 4 for further details |  |  |  |  |  |  |  |
(a) Excludes lease incentive obligation of $105 million. (b) Includes 15 remaining Classic aircraft on operating leases, which net remaining lease payments were included in the $63 million grounding charge recorded during 2017.

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- Definition Disclosure of amounts applicable to aircraft classified as capital leases included in property and equipment, net. + References No definition available. + Details
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- Definition Disclosure of the future minimum lease payments under capital leases and noncancelable operating leases with initial or remaining terms in excess of one year at the balance sheet date. + References No definition available. + Details
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