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Pensions And Other Postretirement Benefits (Narrative) (Details) $ in Millions | 12 Months Ended
--- | ---
Oct. 03, 2015 USD ($) plan | Sep. 27, 2014 USD ($) plan | Sep. 28, 2013 USD ($)
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Number of Plans | plan | 9 |  |
Defined contribution retirement programs, expenses recognized | $ 62 | $ 53 | $ 50
Number of defined benefit plans with accumulated benefit obligations in excess of plan assets | plan | 8 | 7 |
Healthcare cost trend rate, assumed, retirees who do qualify for Medicare | 9.00% |  |
Healthcare cost trend rate, assumed, retirees who do not yet qualify for Medicare | 7.60% |  |
Healthcare cost trend rate, ultimate rate | 4.50% |  |
Defined benefit pension plan assets | $ 1,576 | $ 1,650 |
Plan asset allocations | 100.00% | 100.00% |
Expected contributions to pension plans for fiscal 2016 | $ 63 |  |
Defined benefit plans funding | 14 | $ 9 | 8
Multiemployer Plans, Pension [Member] | Bakery and Confectionary Union & Industry International Pension Fund [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Multiemployer plan, contributions | $ 1 | 1 |
Multiemployer Plans, Pension [Member] | Bakery and Confectionary Union & Industry International Pension Fund [Member] | Pension and Other Postretirement Plans, Contributions, Total [Member] | Multiemployer Plans Concentration Risk [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Concentration, Percentage (less than) | 5.00% |  |
Unfunded Non-Qualified Pension Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Number of Unfunded Non-Qualified Plans | plan | 3 |  |
Amounts expected to be reclassified to earnings within next 12 months | $ 5 |  |
Defined Benefit Plan, Benefit Obligation | 201 | 182 | 85
Defined benefit pension plan assets | 0 | 3 | 0
Defined benefit plans funding | $ 8 | 3 |
Funded Qualified Pension Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Number of Funded Qualified Plans | plan | 6 |  |
Defined Benefit Plan, Number of Frozen and Noncontributory Qualified Plans | plan | 5 |  |
Number of defined benefit plans | plan | 2 |  |
Accumulated benefit obligation | $ 1,785 | 1,849 |
Amounts expected to be reclassified to earnings within next 12 months | 2 |  |
Defined Benefit Plan, Benefit Obligation | 1,785 | 1,849 | 86
Defined benefit pension plan assets | 1,576 | 1,647 | 85
Defined benefit plans funding | $ 6 | 6 |
Assumed Pension Plan Settlement Election Rate | 50.00% |  |
Defined Benefit Plan, Settlements, Plan Assets | $ 252 |  |
Defined Benefit Plan, Recognized Net Gain (Loss) Due to Settlements | 2 |  |
Other Postretirement Benefit Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Amounts expected to be reclassified to earnings within next 12 months | (18) |  |
Defined Benefit Plan, Benefit Obligation | 114 | 163 | 71
Defined benefit pension plan assets | 0 | 0 | $ 0
Defined benefit plans funding | $ 10 | 5 |
Postretirement Health Coverage [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Number of Plans Subject to Partial Settlement, Health and Life Insurance Related | plan | 5 |  |
Defined Benefit Plans, Not Impacted by Heathcare Cost Trend Rates | plan | 2 |  |
Defined Benefit Plan, Benefit Obligation Not Impacted by Healthcare Cost Trend Due to Plan Amendments | $ 23 |  |
Defined Benefit Plan, Benefit Obligation Not Impacted by Healthcare Cost Trend | 24 |  |
Defined Benefit Plan, Benefit Obligation | $ 67 |  |
Defined Benefit Plans, Not Impacted by Heathcare Cost Trend Rates, Consisting of Fixed Annual Payments | plan | 1 |  |
Defined Benefit Plans, Not Impacted by Heathcare Cost Trend Rates, Life Insurance Related | plan | 1 |  |
Foreign Subsidiary Pension Benefit Plans [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Number of defined benefit plans | plan | 1 |  |
Defined benefit pension plan assets | $ 14 | $ 15 |
Fixed Income Funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan asset allocations | 85.40% | 80.50% |
Equity Funds [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Plan asset allocations | 11.00% |  |

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