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Commitments (Narrative) (Details) - USD ($)
3 Months Ended
Jul. 03, 2021
Oct. 03, 2020
Jun. 27, 2020
Guarantor Obligations [Line Items]      
Guarantor Obligations, Current Carrying Value $ 0 $ 0  
Potential maximum obligation under cash flow assistance programs 315,000,000    
Total receivables under cash flow assistance programs 9,000,000 29,000,000  
Cash Flow Assistance Program, Estimated Allowance For Uncollectible Receivables 0 0  
Restricted Cash 195,000,000   $ 82,000,000
Other Assets [Member]      
Guarantor Obligations [Line Items]      
Restricted Cash, Noncurrent 11,000,000 $ 46,000,000  
Industrial Revenue Bonds [Member]      
Guarantor Obligations [Line Items]      
Industrial Revenue Bonds $ 609,000,000    
Guarantee Obligations [Member]      
Guarantor Obligations [Line Items]      
Guarantor Obligations, Maximum Exposure, Period 10 years