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Other Income And Charges (Details) - Other income/expense - USD ($) $ in Millions | 3 Months Ended
--- | ---
Dec. 29, 2018 | Dec. 30, 2017
Components of Other Income and Expenses [Line Items] |  |
Net Periodic Benefit Cost (Credit), Excluding Service Cost | $ 17 |
Equity Earnings in Joint Ventures | 5 | $ 3
Foreign Currency Exchange Loss | $ 1 | 3
Accounting Standards Update 2017-07 [Member] | Restatement Adjustment [Member] |  |
Components of Other Income and Expenses [Line Items] |  |
Net Periodic Benefit Cost (Credit), Excluding Service Cost |  | $ (5)

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