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v3.21.2

Pensions And Other Postretirement Benefits (Narrative) (Details) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 29, 2018 plan | Oct. 02, 2021 USD ($) plan | Oct. 03, 2020 USD ($) | Sep. 28, 2019 USD ($) | Apr. 03, 2021 USD ($)
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Defined contribution retirement programs, expenses recognized |  | $ 106 | $ 103 | $ 97 |
Pension Plan [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Defined Benefit Plan, Number of Plans | plan |  | 4 |  |  |
Number of defined benefit plans with accumulated benefit obligations in excess of plan assets |  | 3 | 4 |  |
Defined Benefit Plan, Gain from Providing Special and Contractual Termination Benefits |  | $ 112 |  |  |
Expected contributions to pension plans for fiscal 2021 |  | 14 |  |  |
Defined benefit plans funding |  | 15 | $ 19 | 13 |
Defined Benefit Plan, Plan Amendment [Abstract] |  |  |  |  |
Multiemployer Plan, Employer Contribution, Cost |  | $ 1 | 1 |  |
Other Postretirement Benefits Plan [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Defined Benefit Plan, Number of Plans | plan |  | 8 |  |  |
Assets for Plan Benefits, Defined Benefit Plan |  | $ 0 | 0 |  |
Defined Benefit Plan, Benefit Obligation |  | 65 | 74 | 77 |
Defined Benefit Pension, Fair Value of Plan Assets |  | 0 | 0 | 0 |
Defined benefit plans funding |  | 3 | 4 |  |
Defined Benefit Plan, Plan Amendment [Abstract] |  |  |  |  |
Plan Amendments |  | (8) | (6) |  |
Defined Benefit Plan, Gain from Plan Amendment |  | $ 34 |  |  |
Postretirement Health Coverage [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Defined Benefit Plan, Number of Plans | plan |  | 5 |  |  |
Defined Benefit Plan, Unfunded Plan [Member] | Nonqualified Plan [Member] | Pension Plan [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Defined Benefit Plan, Number of Plans | plan |  | 3 |  |  |
Assets for Plan Benefits, Defined Benefit Plan |  | $ 0 | 0 |  |
Defined Benefit Plan, Benefit Obligation |  | 220 | 238 | 239 |
Defined Benefit Pension, Fair Value of Plan Assets |  | 0 | 0 | 0 |
Defined benefit plans funding |  | 14 | 12 |  |
Defined Benefit Plan, Plan Amendment [Abstract] |  |  |  |  |
Plan Amendments |  | 0 | 0 |  |
Defined Benefit Plan, Funded Plan [Member] | Qualified Plan [Member] | Pension Plan [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Assets for Plan Benefits, Defined Benefit Plan |  | 5 | 4 |  |
Accumulated benefit obligation |  | 28 | 31 |  |
Amounts expected to be reclassified to earnings within next 12 months related to net periodic benefit cost (credit) |  | 0 |  |  |
Defined Benefit Plan, Benefit Obligation |  | 28 | 31 | 1,478 |
Number of defined benefit plans | plan | 3 |  |  |  |
Defined Benefit Pension, Fair Value of Plan Assets |  | 33 | 35 | $ 1,477 |
Defined benefit plans funding |  | $ 1 | 7 |  |
Defined Benefit Plan, Plan Amendment [Abstract] |  |  |  |  |
Defined Benefit Plan, Number of Frozen and Noncontributory Plans | plan |  | 1 |  |  |
Plan Amendments |  | $ 0 | $ 0 |  |
Defined Benefit Plan, Number of Frozen and Noncontributory Plans | plan |  | 1 |  |  |
Pension Fund of Local 227 [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Multiemployer Plans, Withdrawal Obligation |  | $ 1 |  |  |
Hillshire Hourly and Salaried Plans [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Assets for Plan Benefits, Defined Benefit Plan |  |  |  |  | $ 52
Other Postretirement Benefit Plans, Fixed Annual Payments or Life Insurance [Member] | Other Postretirement Benefits Plan [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Defined Benefit Plan, Number of Plans | plan |  | 2 |  |  |
Defined Benefit Plan, Benefit Obligation |  | $ 14 |  |  |
Other Postretirement Benefit Plans, Fixed Annual Payments or Life Insurance [Member] | Postretirement Health Coverage [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Defined Benefit Plan, Number of Plans | plan |  | 1 |  |  |
Other Postretirement Benefit Plans, Fixed Annual Payments or Life Insurance [Member] | Postretirement Life Insurance [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Defined Benefit Plan, Number of Plans | plan |  | 1 |  |  |
Other Postretirement Benefit Plan, Plan Amendments [Member] | Postretirement Health Coverage [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Defined Benefit Plan, Number of Plans | plan |  | 1 |  |  |
Other Postretirement Benefit Plan, Plan Amendments [Member] | Maximum [Member] | Postretirement Health Coverage [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Defined Benefit Plan, Benefit Obligation |  | $ 1 |  |  |
Other Postretirement Benefit Plan, Hillshire and Keystone Plans [Member] | Postretirement Health Coverage [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Defined Benefit Plan, Number of Plans | plan |  | 2 |  |  |
Other Postretirement Benefit Plan, Heathcare Cost Trend Rates, Hillshire Plan [Member] | Postretirement Health Coverage [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Defined Benefit Plan, Benefit Obligation |  | $ 1 |  |  |
Healthcare cost trend rate, assumed |  | 6.60% |  |  |
Healthcare cost trend rate, ultimate rate |  | 4.50% |  |  |
Other Postretirement Benefit Plan, Heathcare Cost Trend Rates, Keystone Plan [Member] | Postretirement Health Coverage [Member] |  |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |  |
Defined Benefit Plan, Benefit Obligation |  | $ 4 |  |  |
Healthcare cost trend rate, assumed |  | 6.30% |  |  |
Healthcare cost trend rate, ultimate rate |  | 4.50% |  |  |

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