v3.26.1
REVENUE FROM CONTRACTS WITH CUSTOMERS - Summary of Revenue Disaggregation (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue $ 7,577.5 $ 6,394.7 $ 5,268.5
North America      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 4,450.9 3,781.2 3,282.3
Latin America, except Brazil      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 142.0 267.2 98.2
Asia Pacific      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 409.1 256.2 204.5
Brazil      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 630.2 531.4 453.7
Europe      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 1,840.7 1,437.5 1,130.7
Other      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 104.6 121.2 99.1
Aircraft      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 4,606.5 4,003.0 3,300.2
Aircraft | North America      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 3,423.7 2,942.5 2,539.6
Aircraft | Latin America, except Brazil      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 63.2 132.0 53.6
Aircraft | Asia Pacific      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 41.2 64.3 20.2
Aircraft | Brazil      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 354.0 197.2 130.6
Aircraft | Europe      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 713.1 639.5 529.0
Aircraft | Other      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 11.3 27.5 27.2
Long-term contracts - aircraft and development      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 919.1 661.2 457.3
Long-term contracts - aircraft and development | North America      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 14.6 0.0 0.8
Long-term contracts - aircraft and development | Latin America, except Brazil      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 19.7 79.4 0.0
Long-term contracts - aircraft and development | Asia Pacific      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 205.6 59.3 67.1
Long-term contracts - aircraft and development | Brazil      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 93.0 154.8 123.4
Long-term contracts - aircraft and development | Europe      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 585.7 357.9 266.0
Long-term contracts - aircraft and development | Other      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 0.5 9.8 0.0
Other      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 68.7 43.5 31.1
Other | North America      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 0.2 2.5 4.2
Other | Latin America, except Brazil      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 5.1 0.0 0.0
Other | Asia Pacific      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 15.1 0.0 0.0
Other | Brazil      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 5.9 23.0 5.2
Other | Europe      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 41.5 18.0 21.7
Other | Other      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 0.9 0.0 0.0
Service      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 1,417.2 1,229.2 1,021.6
Service | North America      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 741.5 582.7 487.7
Service | Latin America, except Brazil      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 40.6 50.0 34.1
Service | Asia Pacific      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 104.5 102.3 94.0
Service | Brazil      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 111.8 109.6 128.7
Service | Europe      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 353.2 324.4 220.6
Service | Other      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 65.6 60.2 56.5
Spare Parts      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 566.0 457.8 458.3
Spare Parts | North America      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 270.9 253.5 250.0
Spare Parts | Latin America, except Brazil      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 13.4 5.8 10.5
Spare Parts | Asia Pacific      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 42.7 30.3 23.2
Spare Parts | Brazil      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 65.5 46.8 65.8
Spare Parts | Europe      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue 147.2 97.7 93.4
Spare Parts | Other      
Disclosure of disaggregation of revenue from contracts with customers [line items]      
Revenue $ 26.3 $ 23.7 $ 15.4