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Pension and Retiree Medical Benefits Narrative (Details) - USD ($) $ in Millions | 3 Months Ended | 8 Months Ended
--- | --- | ---
Sep. 08, 2018 | Sep. 08, 2018 | Sep. 09, 2017
Domestic Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Contributions by Employer, Discretionary |  | $ 1,400 |
Retiree Medical Plan [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Contributions by Employer, Discretionary | $ 37 |  |
International [Member] |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |
Defined Benefit Plan, Contributions by Employer, Discretionary |  | $ 17 | $ 6

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- Definition Defined Benefit Plan, Contributions by Employer, Discretionary + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Details
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- Details
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- Details
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