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Fair Value Measurements Fair Value Measurements (Narrative) (Details) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Oct. 03, 2015 USD ($) | Sep. 27, 2014 USD ($) | Jun. 28, 2014 USD ($) Facilities | Oct. 03, 2015 USD ($) | Sep. 27, 2014 USD ($) Facilities | Sep. 28, 2013 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Other than Temporary Impairment Losses, Investments, Portion in Other Comprehensive Loss, Net of Tax, Portion Attributable to Parent |  |  |  |  | $ 0 |  |
Asset Impairment Charges |  |  |  |  | 285 | $ 107 | $ 74
Goodwill, Impairment Loss |  |  |  |  | $ 23 | $ 5 |
Accounts Receivable [Member] | Customer Concentration Risk [Member] | Wal-Mart Stores, Inc. [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Concentration, Percentage |  |  |  |  | 20.00% | 18.60% |
Beef [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Goodwill, Impairment Loss |  |  |  |  | $ 0 | $ 0 |
Prepared Foods [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Goodwill, Impairment Loss |  |  |  |  | 0 | 0 |
Other [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Goodwill, Impairment Loss | [1] |  |  |  | 23 | 5 |
Chicken Production Operations in China [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Property, Plant and Equipment, Transfers and Changes |  | $ 126 |  |  |  |  |
Goodwill, Impairment Loss |  | 23 |  |  |  |  |
Impairment of other assets |  | 20 |  |  |  |  |
Chicken Production Operations in China [Member] | Cost of Sales [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  | 169 |  |  |  |  |
Chicken Production Operations in China [Member] | Cost of Sales [Member] | Other [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  | 169 |  |  |  |  |
Other [Member] | Chicken Production Operations in Brazil [Member] | Level 3 [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Assets Held-for-sale, Long Lived, Fair Value Disclosure |  |  | $ 144 |  |  | 144 |
Other [Member] | Chicken Production Operations in Brazil [Member] | Other [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  |  | $ 39 |  |  |  |
Facility Closing [Member] | Operating Segments [Member] | Beef [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  | 12 |  |  |  |  |
Facility Closing [Member] | Operating Segments [Member] | Prepared Foods [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  | 59 |  | $ 49 |  | $ 52 |
Plants Closed | Facilities |  |  |  | 3 |  | 3 |
Facility Closing [Member] | Operating Segments [Member] | Cost of Sales [Member] | Prepared Foods [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  | 49 |  |  |  |  |
Facility Closing [Member] | Operating Segments [Member] | Selling, General and Administrative Expenses [Member] | Prepared Foods [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  | 10 |  |  |  |  |
Fair Value, Measurements, Nonrecurring [Member] | Chicken Production Operations in China [Member] | Cost of Sales [Member] | Other [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  | 169 |  |  |  |  |
Fair Value, Measurements, Nonrecurring [Member] | Other [Member] | Chicken Production Operations in Brazil [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  |  |  |  |  | $ 39 |
Fair Value, Measurements, Nonrecurring [Member] | Facility Closing [Member] | Operating Segments [Member] | Beef [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  | 12 |  |  |  |  |
Fair Value, Measurements, Nonrecurring [Member] | Facility Closing [Member] | Operating Segments [Member] | Prepared Foods [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  | 59 |  |  | 52 |  |
Fair Value, Measurements, Nonrecurring [Member] | Facility Closing [Member] | Operating Segments [Member] | Cost of Sales [Member] | Prepared Foods [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  | 49 |  |  |  |  |
Fair Value, Measurements, Nonrecurring [Member] | Facility Closing [Member] | Operating Segments [Member] | Selling, General and Administrative Expenses [Member] | Prepared Foods [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Asset Impairment Charges |  | $ 10 |  |  |  |  |
Common Stock and Warrants [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net |  |  |  |  | $ 0 | $ 6 |
Maximum [Member] |  |  |  |  |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |  |  |  |  |
Short Term Investment Maturity Period |  |  |  |  | 12 months |  |
Available For Sale Securities Debt Maturity Period |  |  |  |  | 35 years |  |
[1] | Other included the goodwill from our international chicken operation.

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