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Income Taxes Change in Valuation Allowance Against Deferred Tax Assets (Details) - USD ($)
$ in Millions
 12 Months Ended
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.