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Pension and Retiree Medical Benefits Narrative (Details) - USD ($) | 8 Months Ended
--- | ---
Sep. 07, 2019 | Sep. 08, 2018
Domestic Plan [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Contributions by Employer, Discretionary | $ 150,000,000 | $ 1,400,000,000
Foreign Plan [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Contributions by Employer, Discretionary | $ 17,000,000 | 17,000,000
Postemployment Retirement Benefits [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Defined Benefit Plan, Contributions by Employer, Discretionary |  | $ 37,000,000

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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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