v3.26.1
RELATED PARTIES - Summary of Balances and Transactions With Related Parties (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Disclosure of transactions between related parties [line items]    
Trade accounts receivable $ 291.1 $ 322.8
Other assets 683.0 436.1
Cash and cash equivalents 1,949.8 1,563.0
Contract assets 562.0 624.1
Other payables 958.4 521.0
Contract liabilities 3,435.1 3,284.6
Total for all related parties    
Disclosure of transactions between related parties [line items]    
Trade accounts receivable 13.0 11.4
Other assets 313.2 178.5
Cash and cash equivalents 230.4 511.8
Contract assets 248.0 263.5
Loans and financing 356.1 463.8
Other payables 28.3 15.0
Contract liabilities 90.7 83.4
Total for all related parties | Águas Azuis Construção Naval SPE Ltda.    
Disclosure of transactions between related parties [line items]    
Trade accounts receivable 5.8 4.3
Other assets 21.5  
Contract assets 0.8 0.3
Contract liabilities 15.0 17.9
Total for all related parties | Banco do Brasil S.A.    
Disclosure of transactions between related parties [line items]    
Other assets 140.2 1.1
Cash and cash equivalents 230.4 511.8
Total for all related parties | Banco Nacional de Desenvolvimento Econômico e Social – BNDES    
Disclosure of transactions between related parties [line items]    
Loans and financing 338.3 463.8
Total for all related parties | Comando da Aeronáutica (Brazilian Air Force)    
Disclosure of transactions between related parties [line items]    
Trade accounts receivable 6.3 5.7
Contract assets 241.9 251.7
Other payables   15.0
Contract liabilities 38.7 51.0
Total for all related parties | Exército Brasileiro (Brazilian Army)    
Disclosure of transactions between related parties [line items]    
Trade accounts receivable   0.1
Contract assets 5.1 10.5
Contract liabilities 19.2 9.0
Total for all related parties | EZ Air Interior Limited    
Disclosure of transactions between related parties [line items]    
Other assets 25.3 23.8
Total for all related parties | FINEP    
Disclosure of transactions between related parties [line items]    
Loans and financing 17.8  
Total for all related parties | Governo Brasileiro - Bonds (Brazilian government -Bonds)    
Disclosure of transactions between related parties [line items]    
Other assets 126.2 153.6
Total for all related parties | Marinha do Brasil (Brazilian Navy)    
Disclosure of transactions between related parties [line items]    
Contract assets 0.2 1.0
Contract liabilities 17.8 5.5
Total for all related parties | Nidec Aerospace, LLC.    
Disclosure of transactions between related parties [line items]    
Trade accounts receivable $ 0.9 $ 1.3