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v3.23.1

Financing Activities - Narrative (Details) |  | 3 Months Ended |  |
--- | --- | --- | --- | ---
Dec. 05, 2022 USD ($) aircraft | Mar. 31, 2023 USD ($) aircraft | Mar. 31, 2022 USD ($) | Dec. 31, 2022 USD ($) aircraft | May 01, 2020 USD ($) $ / shares
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Capital expenditures |  | $ 1,046,000,000 | $ 510,000,000 |  |
Payments of long-term debt and finance lease obligations |  | $ 59,000,000 | $ 93,000,000 |  |
Boeing 737-700 | Air Transportation Equipment |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Aircrafts to be purchased | aircraft | 39 | 8 |  |  |
Aircrafts to be purchased | aircraft |  | 39 |  | 31 |
Capital expenditures | $ 88,000,000 |  |  |  |
Payments of long-term debt and finance lease obligations |  | $ 50,000,000 |  |  |
Total lease obligations |  | $ 38,000,000 |  |  |
Number of leased aircrafts | aircraft |  | 28 |  |  |
Gain (loss) on sale of leased aircraft |  | $ 0 |  |  |
Convertible Debt |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Principal amount |  | $ 1,600,000,000 |  | $ 1,600,000,000 | $ 2,300,000,000
Stated interest rate |  |  |  |  | 1.25%
Initial conversion price (in USD per share) | $ / shares |  |  |  |  | $ 38.48
Amortization period (in years) |  | 5 years |  |  |
Convertible Debt | 1.25% Convertible Notes due 2025 |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Stated interest rate |  | 1.25% |  |  |
Amounts outstanding |  | $ 1,611,000,000 |  |  |
Notes Due 2027 |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Effective interest rate |  | 1.90% |  |  |
Line of Credit |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |
Borrowing capacity |  | $ 1,000,000,000 |  |  |
Amounts outstanding |  | $ 0 |  |  |

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