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Income Taxes - Unrecognized Tax Benefits (Details) - USD ($)
$ in Millions
12 Months Ended
Jan. 01, 2022
Jan. 02, 2021
Jan. 04, 2020
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Balance at beginning of year $ 183 $ 221 $ 141
Additions for tax positions related to current year 21 11 9
Additions for tax positions of prior years 10 21 74
Reductions for settlements and expiration of statute of limitations (3) (69) (1)
Reductions for tax positions of prior years (4) (1) (2)
Balance at end of year $ 207 $ 183 $ 221