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Revenue from Contracts with Customers - Summary of Contract balances, including contract costs (Detail) - USD ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Contract assets $ 624.1 $ 511.5
Current portion of Contract Assets 622.7 509.1
Non-current portion of Contract Assets 1.4 2.4
Deferred revenue - Parts and services 219.7 203.5
Contract liabilities 3,284.6 2,540.9
Current portion of contract liabilities 2,563.4 1,919.0
Non Current portion of contract liabilities 721.2 621.9
Third Parties [Member]    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Contract assets 360.9 196.7
Related parties [member]    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Contract assets 263.2 314.8
Advances from customers 65.5 84.6
Contract liabilities 65.5 84.6
Aircraft and Defense Longterm Contracts [Member]    
Disclosure of disaggregation of revenue from contracts with customers [line items]    
Advances from customers $ 2,999.4 $ 2,252.8