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Debt (Tables) | 3 Months Ended
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Mar. 31, 2019
Debt Disclosure [Abstract] |
Details of Pass Through Trusts | Certain details of the pass-through trusts with proceeds received from issuance of debt in 2019 are as follows (in millions, except stated interest rate):
EETC Date |  | Class |  | Principal |  | Final expected distribution date |  | Stated interest rate |  | Total debt recorded as of March 31, 2019 |  | Proceeds received from issuance of debt during 2019 |  | Remaining proceeds from issuance of debt to be received in future periods
February 2019 |  | AA |  | $ | 717 |  |  | August 2031 |  | 4.15% |  | $ | 522 |  |  | $ | 522 |  |  | $ | 195 |
February 2019 |  | A |  | 296 |  |  | August 2031 |  | 4.55% |  | 216 |  |  | 216 |  |  | 80 |
|  |  |  | $ | 1,013 |  |  |  |  |  |  | $ | 738 |  |  | $ | 738 |  |  | $ | 275 |
Contractual Principal Payments under Long-Term Debt Agreements | The table below presents the Company's contractual principal payments (not including debt discount or debt issuance costs) at March 31, 2019 under then-outstanding long-term debt agreements (in millions):
Last nine months of 2019 |  | $ | 979 |
2020 |  | 1,344 |
2021 |  | 1,338 |
2022 |  | 1,690 |
2023 |  | 740 |
After 2023 |  | 8,033 |
|  | $ | 14,124 |

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- Definition Schedule of Debt Instruments Pass Through Trusts + References No definition available. + Details
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- Definition Tabular disclosure of the combined aggregate amount of maturities and sinking fund requirements for all long-term borrowings for each of the five years following the date of the latest balance sheet date presented. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6802200&loc=d3e1835-112601 + Details
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