v3.26.3
Debt (Details) - USD ($)
$ in Millions
1 Months Ended 9 Months Ended
Aug. 31, 2026
Sep. 30, 2026
Dec. 08, 2025
Debt Instrument [Line Items]      
Line of credit facility, expiration period   5 years  
Senior Notes | Spirit AeroSystems Holdings, Inc. | Senior Notes Due 2026      
Debt Instrument [Line Items]      
Business combination, recognized identifiable assets acquired and liabilities assumed, long-term debt, outstanding     $ 300
Debt instrument, interest rate, stated percentage     3.85%
Senior Notes | Spirit AeroSystems Holdings, Inc. | Senior Notes Due 2028      
Debt Instrument [Line Items]      
Business combination, recognized identifiable assets acquired and liabilities assumed, long-term debt, outstanding     $ 700
Debt instrument, interest rate, stated percentage     4.60%
Three Hundred And Sixty Four Day Revolving Credit Facility - Expiring August 2027 | Line of Credit      
Debt Instrument [Line Items]      
Line of credit facility, maximum borrowing capacity $ 3,000    
Line of credit facility, expiration period 364 days    
Line of credit facility, term out option period 1 year    
Five Year Credit Facility Expiring - August 2029 | Line of Credit      
Debt Instrument [Line Items]      
Line of credit facility, maximum borrowing capacity $ 3,000    
Line of credit facility, expiration period 5 years    
Five Year Credit Facility Expiring - May 2030 | Line of Credit      
Debt Instrument [Line Items]      
Line of credit facility, maximum borrowing capacity $ 4,000    
Line of credit facility, expiration period 5 years