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Pensions and Other Benefit Plans - Information Related to the Benefit Obligation and the Fair Value of Plan Assets (Details) - USD ($) $ in Millions | Jan. 03, 2021 | Dec. 29, 2019
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Qualified Plans | U.S. Plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Plan Assets | $ 25,554 | $ 21,398
Projected Benefit Obligation | 25,466 | 22,034
Accumulated Benefit Obligation | 24,158 | 19,831
Projected Benefit Obligation | 88 | (636)
Accumulated Benefit Obligation | 1,396 | 1,567
Non-Qualified Plans | U.S. Plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Plan Assets | 0 | 0
Projected Benefit Obligation | 2,748 | 2,544
Accumulated Benefit Obligation | 2,495 | 2,115
Projected Benefit Obligation | (2,748) | (2,544)
Accumulated Benefit Obligation | (2,495) | (2,115)
Funded Plans | International Plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Plan Assets | 12,641 | 10,803
Projected Benefit Obligation | 14,541 | 12,132
Accumulated Benefit Obligation | 13,210 | 11,040
Projected Benefit Obligation | (1,900) | (1,329)
Accumulated Benefit Obligation | (569) | (237)
Unfunded Plans | International Plans |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Plan Assets | 0 | 0
Projected Benefit Obligation | 545 | 478
Accumulated Benefit Obligation | 493 | 430
Projected Benefit Obligation | (545) | (478)
Accumulated Benefit Obligation | $ (493) | $ (430)

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- Definition Amount of actuarial present value of benefits attributed to employee service rendered, excluding assumptions about future compensation level. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 + Details
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