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Long-term Debt (Details) | 12 Months Ended
--- | ---
Dec. 31, 2019 USD ($) Mortgages aircraft
Debt Instrument [Line Items] |
Letters of Credit Outstanding Amount | $ 148,000,000
Line of Credit Facility, Interest Rate at Period End | 100.00%
Net book value of assets pledged as collateral for the Company's secured borrowings, primarily aircraft and engines | $ 990,000,000
Net book value of additional assets pledged as collateral in case obligations related to fuel derivatives exceed certain thresholds | 1,200,000,000
Long-term Debt, by Maturity [Abstract] |
2020 | 819,000,000
2021 | 170,000,000
2022 | 475,000,000
2023 | 103,000,000
2024 | 103,000,000
Thereafter | 990,000,000
AirTran Airways | Interest rate derivatives |
Debt Instrument [Line Items] |
Notional amount | $ 13,000,000
AirTran Airways | Maximum | Interest rate derivatives |
Debt Instrument [Line Items] |
Interest rate stated in the debt agreement (in hundredths) | 4.50%
2.75% Unsecured Senior Notes Due November 2019 |
Debt Instrument [Line Items] |
Face amount of debt | $ 300,000,000
Interest rate stated in the debt agreement (in hundredths) | 2.75%
Term Loan Agreement payable through May 2019 - 6.315% |
Debt Instrument [Line Items] |
Number of mortgages on secured aircraft | Mortgages | 14
Interest rate stated in the debt agreement (in hundredths) | 6.315%
Term Loan Agreement payable through May 2019 - 6.315% | LIBOR |
Debt Instrument [Line Items] |
Spread on variable rate | 3.30%
Term Loan Agreement payable through May 2019 - 6.315% | Maximum |
Debt Instrument [Line Items] |
Face amount of debt | $ 332,000,000
Term Loan Agreement payable through July 2019 - 4.84% |
Debt Instrument [Line Items] |
Number of mortgages on secured aircraft | Mortgages | 5
Interest rate stated in the debt agreement (in hundredths) | 4.84%
Term Loan Agreement payable through July 2019 - 4.84% | Maximum |
Debt Instrument [Line Items] |
Face amount of debt | $ 124,000,000
2.65% Notes due 2020 |
Debt Instrument [Line Items] |
Face amount of debt | $ 500,000,000
Interest rate stated in the debt agreement (in hundredths) | 2.65%
Term Loan Agreement payable through 2020 - 5.223% |
Debt Instrument [Line Items] |
Number of mortgages on secured aircraft | Mortgages | 21
Face amount of debt | $ 600,000,000
Interest rate stated in the debt agreement (in hundredths) | 5.223%
Term Loan Agreement payable through 2020 - 5.223% | LIBOR |
Debt Instrument [Line Items] |
Spread on variable rate | 0.95%
737 Aircraft Notes payable through 2020 | AirTran Airways |
Debt Instrument [Line Items] |
Number of mortgages on secured aircraft | aircraft | 3
Weighted average interest rate | 3.49%
Unsecured Senior Notes Due 2022 - 2.75% |
Debt Instrument [Line Items] |
Face amount of debt | $ 300,000,000
Interest rate stated in the debt agreement (in hundredths) | 2.75%
Pass Through Certificates due 2022 - 6.24% |
Debt Instrument [Line Items] |
Number of mortgages on secured aircraft | Mortgages | 16
Face amount of debt | $ 500,000,000
Pass Through Certificates due 2022 - 6.24% | Interest rate derivatives | Cash Flow Hedging |
Debt Instrument [Line Items] |
Notional amount | 20,000,000
Pass Through Certificates Series A |
Debt Instrument [Line Items] |
Face amount of debt | $ 412,000,000
Interest rate stated in the debt agreement (in hundredths) | 6.15%
Pass Through Certificates Series B |
Debt Instrument [Line Items] |
Face amount of debt | $ 88,000,000
Interest rate stated in the debt agreement (in hundredths) | 6.65%
Term Loan Agreement Due 2026 - 3.03% |
Debt Instrument [Line Items] |
Number of mortgages on secured aircraft | Mortgages | 7
Interest rate stated in the debt agreement (in hundredths) | 3.03%
Term Loan Agreement Due 2026 - 3.03% | LIBOR |
Debt Instrument [Line Items] |
Spread on variable rate | 1.10%
Term Loan Agreement Due 2026 - 3.03% | Maximum |
Debt Instrument [Line Items] |
Face amount of debt | $ 215,000,000
Unsecured Senior Notes Due 2026 - 3.00% |
Debt Instrument [Line Items] |
Face amount of debt | $ 300,000,000
Interest rate stated in the debt agreement (in hundredths) | 3.00%
Unsecured Senior Notes Due 2027 - 3.45% |
Debt Instrument [Line Items] |
Face amount of debt | $ 300,000,000
Interest rate stated in the debt agreement (in hundredths) | 3.45%
Unsecured Senior Notes Due 2027 - 3.45% | Treasury Rate |
Debt Instrument [Line Items] |
Spread on variable rate | 20.00%
7.375% Debentures due 2027 |
Debt Instrument [Line Items] |
Face amount of debt | $ 100,000,000
Interest rate stated in the debt agreement (in hundredths) | 7.375%
Enhanced Equipment Trust Certificate | Pass Through Certificates due 2022 - 6.24% |
Debt Instrument [Line Items] |
Interest rate stated in the debt agreement (in hundredths) | 6.24%
B-737-700 |
Debt Instrument [Line Items] |
Maximum additional number of assets pledged as collateral in case obligations related to fuel derivatives exceed certain thresholds | aircraft | 12
B-737-800 |
Debt Instrument [Line Items] |
Maximum additional number of assets pledged as collateral in case obligations related to fuel derivatives exceed certain thresholds | aircraft | 37
Revolving Credit Facility [Member] |
Debt Instrument [Line Items] |
Line of Credit Facility, Current Borrowing Capacity | $ 1,000,000,000.0
Line of Credit Facility, Maximum Borrowing Capacity | 1,500,000,000
Line of Credit Facility, Fair Value of Amount Outstanding | $ 0

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