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Other Income And Charges (Details)
$ in Millions
12 Months Ended
Sep. 28, 2019
USD ($)
Components of Other Income and Expenses [Line Items]  
Proceeds from Sale of Other Investments $ 79
Other Nonoperating Income (Expense) [Member]  
Components of Other Income and Expenses [Line Items]  
Income (Loss) from Equity Method Investments 20
Gain on Sale of Investments 55
Pension and Other Postretirement Benefits Cost (Reversal of Cost) $ 48