v3.26.1
INFORMATION BY OPERATING SEGMENTS AND GEOGRAPHIC AREA - Summary of Revenue by Category and Operating Segment (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Disclosure Of Revenue By Category [Line Items]      
Revenue $ 7,577.5 $ 6,394.7 $ 5,268.5
Aircraft      
Disclosure Of Revenue By Category [Line Items]      
Revenue 4,606.5 4,003.0 3,300.2
Long-term contracts - aircraft and development      
Disclosure Of Revenue By Category [Line Items]      
Revenue 919.1 661.2 457.3
Other      
Disclosure Of Revenue By Category [Line Items]      
Revenue 68.7 43.5 31.1
Service      
Disclosure Of Revenue By Category [Line Items]      
Revenue 1,417.2 1,229.2 1,021.6
Spare parts      
Disclosure Of Revenue By Category [Line Items]      
Revenue 566.0 457.8 458.3
Other Segments      
Disclosure Of Revenue By Category [Line Items]      
Revenue 93.1 66.0 80.5
Other Segments | Aircraft      
Disclosure Of Revenue By Category [Line Items]      
Revenue 32.4 40.5 44.7
Other Segments | Other      
Disclosure Of Revenue By Category [Line Items]      
Revenue 0.0 0.3 0.7
Other Segments | Service      
Disclosure Of Revenue By Category [Line Items]      
Revenue 22.6 15.0 24.0
Other Segments | Spare parts      
Disclosure Of Revenue By Category [Line Items]      
Revenue 38.1 10.2 11.1
Operating Segments      
Disclosure Of Revenue By Category [Line Items]      
Revenue 7,577.5 6,394.7 5,268.5
Operating Segments | Commercial Aviation      
Disclosure Of Revenue By Category [Line Items]      
Revenue 2,369.8 2,208.6 1,846.8
Operating Segments | Commercial Aviation | Aircraft      
Disclosure Of Revenue By Category [Line Items]      
Revenue 2,369.0 2,199.8 1,834.1
Operating Segments | Commercial Aviation | Other      
Disclosure Of Revenue By Category [Line Items]      
Revenue 0.8 8.8 12.7
Operating Segments | Defense & Security      
Disclosure Of Revenue By Category [Line Items]      
Revenue 983.9 720.9 515.4
Operating Segments | Defense & Security | Aircraft      
Disclosure Of Revenue By Category [Line Items]      
Revenue 0.0 0.0 13.2
Operating Segments | Defense & Security | Long-term contracts - aircraft and development      
Disclosure Of Revenue By Category [Line Items]      
Revenue 919.1 661.2 457.3
Operating Segments | Defense & Security | Other      
Disclosure Of Revenue By Category [Line Items]      
Revenue 18.7 16.5  
Operating Segments | Defense & Security | Service      
Disclosure Of Revenue By Category [Line Items]      
Revenue 42.3 42.2 41.3
Operating Segments | Defense & Security | Spare parts      
Disclosure Of Revenue By Category [Line Items]      
Revenue 3.8 1.0 3.6
Operating Segments | Executive Aviation      
Disclosure Of Revenue By Category [Line Items]      
Revenue 2,205.1 1,762.7 1,408.2
Operating Segments | Executive Aviation | Aircraft      
Disclosure Of Revenue By Category [Line Items]      
Revenue 2,205.1 1,762.7 1,408.2
Operating Segments | Services & Support      
Disclosure Of Revenue By Category [Line Items]      
Revenue 1,925.6 1,636.5 1,417.6
Operating Segments | Services & Support | Other      
Disclosure Of Revenue By Category [Line Items]      
Revenue 49.2 17.9 17.7
Operating Segments | Services & Support | Service      
Disclosure Of Revenue By Category [Line Items]      
Revenue 1,352.3 1,172.0 956.3
Operating Segments | Services & Support | Spare parts      
Disclosure Of Revenue By Category [Line Items]      
Revenue 524.1 446.6 443.6
Operating Segments | Total reportable Segments      
Disclosure Of Revenue By Category [Line Items]      
Revenue 7,484.4 6,328.7 5,188.0
Operating Segments | Total reportable Segments | Aircraft      
Disclosure Of Revenue By Category [Line Items]      
Revenue 4,574.1 3,962.5 3,255.5
Operating Segments | Total reportable Segments | Long-term contracts - aircraft and development      
Disclosure Of Revenue By Category [Line Items]      
Revenue 919.1 661.2 457.3
Operating Segments | Total reportable Segments | Other      
Disclosure Of Revenue By Category [Line Items]      
Revenue 68.7 43.2 30.4
Operating Segments | Total reportable Segments | Service      
Disclosure Of Revenue By Category [Line Items]      
Revenue 1,394.6 1,214.2 997.6
Operating Segments | Total reportable Segments | Spare parts      
Disclosure Of Revenue By Category [Line Items]      
Revenue 527.9 447.6 447.2
Operating Segments | Other Segments      
Disclosure Of Revenue By Category [Line Items]      
Revenue $ 93.1 $ 66.0 $ 80.5