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Rollforward of Reserves for Federal State and Foreign Tax Jurisdictions (Detail) - USD ($)
$ in Millions
8 Months Ended 12 Months Ended
Sep. 08, 2018
Dec. 30, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]    
Balance, beginning of year $ 2,212 $ 1,885
Additions for tax positions related to the current year 102 309
Additions for tax positions from prior years 124 86
Reductions for tax positions from prior years (734) (51)
Settlement payments (229) (4)
Statute of limitations expiration (28) (33)
Translation and other (10) 20
Balance, end of period $ 1,437 $ 2,212