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Leases (Tables) | 12 Months Ended
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Dec. 31, 2018
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) |  | 2018 |  | 2017
Flight equipment |  | $ | 1,329 |  |  | $ | 1,207 |
Less: accumulated amortization |  | 304 |  |  | 172 |
|  | $ | 1,025 |  |  | $ | 1,035 |
Future Minimum Lease Payments Under Capital Leases And Noncancelable Operating Leases | Future minimum lease payments under capital leases and noncancelable operating leases and rentals to be received under subleases with initial or remaining terms in excess of one year at December 31, 2018, were:
(in millions) |  | Capital leases |  | Operating leases |  | Subleases |  | Operating leases, net
2019 |  | $ | 111 |  |  | $ | 348 |  |  | $ | (92 | ) |  | $ | 256 |
2020 |  | 109 |  |  | 357 |  |  | (78 | ) |  | 279 |
2021 |  | 105 |  |  | 244 |  |  | (41 | ) |  | 203 |
2022 |  | 100 |  |  | 172 |  |  | (17 | ) |  | 155 |
2023 |  | 97 |  |  | 146 |  |  | (7 | ) |  | 139 |
Thereafter |  | 335 |  |  | 474 |  |  | (1 | ) |  | 473 |
Total minimum lease payments |  | $ | 857 |  |  | $ | 1,741 |  |  | $ | (236 | ) |  | $ | 1,505 |
Less amount representing interest |  | 126 |  |  |  |  |  |  |
Present value of minimum lease payments (a) |  | 731 |  |  |  |  |  |  |
Less current portion |  | 85 |  |  |  |  |  |  |
Long-term portion |  | $ | 646 |  |  |  |  |  |  |
(a) Excludes lease incentive obligation of $114 million.

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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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