Annual report pursuant to Section 13 and 15(d)

Income Taxes - Valuation Allowance (Details)

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Income Taxes - Valuation Allowance (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 28, 2019
Dec. 29, 2018
Dec. 30, 2017
Dec. 31, 2016
Income Tax Contingency [Line Items]        
Unrealized state credit carryforwards $ 1,500      
Undistributed earnings on certain foreign subsidiaries 22,000      
Balance at Beginning of Year 1,302      
Balance at End of Year 1,534 $ 1,302    
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]        
Income Tax Contingency [Line Items]        
Net (Deductions) Recoveries (7) (54) $ (19)  
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount 1,534 1,302 1,171 $ 953
SEC Schedule, 12-09, Valuation Allowances and Reserves, Increase (Decrease) Adjustment $ 239 $ 185 $ 237