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Acquisitions and Dispositions Disposition Narrative (Details) - USD ($) $ in Millions |  | 3 Months Ended | 6 Months Ended
--- | --- | --- | ---
Dec. 30, 2017 | Mar. 31, 2018 | Mar. 31, 2018 | Apr. 01, 2017
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Proceeds from sale of business |  |  | $ 125 | $ 0
Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations [Member] | Kettle Business [Member] | Prepared Foods |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Proceeds from sale of business | $ 125 |  |  |
Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations [Member] | Kettle Business [Member] | Cost of Sales | Prepared Foods |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Gain (Loss) on Disposition of Business |  |  | 22 |
Disposal Group, Held-for-sale or Disposed of by Sale, Not Discontinued Operations [Member] | Sara Lee® Frozen Bakery and Van’s® businesses [Member] | Cost of Sales | Prepared Foods |  |  |  |
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] |  |  |  |
Asset Impairment Charges |  | $ 75 | $ 101 |

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