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Commitments and contingencies - Narrative (Details) | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2024 USD ($) engine aircraft helicopter | Dec. 31, 2017 USD ($) | Dec. 31, 2008 USD ($) | Feb. 26, 2025 USD ($) | Jun. 09, 2022 aircraft | Dec. 31, 1992 engine aircraft
Loss Contingencies [Line Items] |  |  |  |  |  |
Purchase obligation, number of engines | engine | 85 |  |  |  |  |
Purchase obligation, number of helicopters | helicopter | 11 |  |  |  |  |
Non-refundable deposits | $ 3,100,000,000 |  |  |  |  |
Interest expense capitalized | 122,000,000 |  |  |  |  |
Number of managed aircrafts | aircraft |  |  |  |  | 3 |
VASP litigation |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Loss contingency, loss in period |  | $ 0 |  |  |  |
VASP litigation | VASP litigation English court |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Claim award for loss of profit plus accrued interest |  |  | $ 66,000,000 |  |  |
Aircraft Hull and Spares and Equipment | Subsequent event |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Insurance coverage claimable by entity |  |  |  | $ 1,800,000,000 |  |
Aviation, War and Allied Perils | Subsequent event |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Insurance coverage claimable by entity |  |  |  | $ 1,000,000,000 |  |
All Risks, Operator Reinsurance Policies |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Insurance coverage claimable by entity | 1,500,000,000 |  |  |  |  |
War Risks, Operator Reinsurance Policies |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Insurance coverage claimable by entity | $ 1,500,000,000 |  |  |  |  |
Aircraft |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Number of forward orders | aircraft | 296 |  |  |  |  |
Aircraft | VASP litigation |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Number of capital leased assets | aircraft |  |  |  |  |  | 13
Number of leases that company incurred obligations due to another company's default | aircraft |  |  |  |  |  | 13
Engines | VASP litigation |  |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |  |
Number of capital leased assets | engine |  |  |  |  |  | 3
Number of leases that company incurred obligations due to another company's default | engine |  |  |  |  |  | 3

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