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Income Taxes Change in Valuation Allowance Against Deferred Tax Assets (Details) - USD ($) $ in Millions | 12 Months Ended
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Jan. 02, 2021 | Dec. 28, 2019 | Dec. 29, 2018
Income Tax Disclosure [Abstract] |  |  |  |  |
Balance at beginning of year | $ 146 |  | $ 166 |  | $ 153
Additions charged to income tax expense | 62 | [1] | 25 |  | 29
Reductions credited to income tax expense | (24) |  | (47) | [2] | (1)
Currency translation adjustments | 8 |  | 2 |  | (15)
Balance at end of year | 192 |  | 146 |  | $ 166
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount | $ (41) |  | $ 32 |  |
[1] | During 2020, the Company increased the valuation allowance by $41 million related to the revaluation of its investment in a foreign subsidiary.
[2] | During 2019, the Company decreased the valuation allowance by $32 million related to the revaluation of its investment in a foreign subsidiary.

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- Definition The amount of the increase in the period in the valuation allowance for a specified deferred tax asset. + References No definition available. + Details
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- Definition The amount of the decrease in the period in the valuation allowance for a specified deferred tax asset. + References No definition available. + Details
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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- Definition Amount of increase (decrease) in the valuation allowance for a specified deferred tax asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32537-109319 + Details
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