v3.26.1
Commitments (Narrative) (Details) - USD ($)
$ in Millions
6 Months Ended
Mar. 28, 2026
Sep. 27, 2025
Mar. 29, 2025
Guarantor Obligations [Line Items]      
Guarantor Obligations, Current Carrying Value $ 0 $ 0  
Potential maximum obligation under cash flow assistance programs 155    
Restricted Cash 0   $ 0
Restricted Cash, Noncurrent $ 0 $ 0  
Restricted Cash and Cash Equivalent, Noncurrent, Statement of Financial Position [Extensible Enumeration] Other Assets Other Assets  
Guarantor Obligation, Term 6 years    
Industrial Revenue Bonds [Member]      
Guarantor Obligations [Line Items]      
Industrial Revenue Bonds $ 806    
Guarantee Obligations [Member]      
Guarantor Obligations [Line Items]      
Guarantor Obligations, Maximum Exposure, Undiscounted $ 0