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Commitments (Narrative) (Details) - USD ($)
$ in Millions
Mar. 30, 2024
Sep. 30, 2023
Apr. 01, 2023
Guarantor Obligations [Line Items]      
Guarantor Obligations, Current Carrying Value $ 0 $ 0  
Potential maximum obligation under cash flow assistance programs 280    
Total receivables under cash flow assistance programs 20 12  
Restricted Cash 0   $ 0
Restricted Cash, Noncurrent $ 0 $ 0  
Restricted Cash and Cash Equivalents, Noncurrent, Statement of Financial Position [Extensible Enumeration] Other Assets Other Assets  
Industrial Revenue Bonds [Member]      
Guarantor Obligations [Line Items]      
Industrial Revenue Bonds $ 802    
Guarantee Obligations [Member]      
Guarantor Obligations [Line Items]      
Guarantor Obligations, Maximum Exposure, Undiscounted $ 0