Annual report pursuant to Section 13 and 15(d)

Common Stock and Stock-Based Incentive Compensation Plans (Details) (Stock Option Activities)

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Common Stock and Stock-Based Incentive Compensation Plans (Details) (Stock Option Activities) - Stock Options - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
12 Months Ended
Dec. 29, 2018
Dec. 30, 2017
Number of Shares    
Stock options, shares outstanding at beginning of year 17  
Stock options, shares granted 1  
Stock options, shares canceled (less than in 2017) 0  
Stock options, shares exercised (5)  
Stock options, shares outstanding at end of year 13 17
Stock options, shares exercisable at end of year 11  
Weighted- Average Exercise Price    
Stock options, shares outstanding at beginning of year, weighted average exercise price (USD per share) $ 4.32  
Stock options, shares granted, weighted average exercise price (USD per share) 18.35  
Stock options, shares canceled, weighted average exercise price (USD per share) 8.93  
Stock options, shares exercised, weighted average exercise price (USD per share) 4.65  
Stock options, shares outstanding at end of year, weighted average exercise price (USD per share) 5.33 $ 4.32
Stock options, shares exercisable at end of year, weighted average exercise price (USD per share) $ 3.64  
Aggregate Intrinsic Value    
Stock options, shares outstanding, aggregate intrinsic value $ 152 $ 104
Stock options, exercisable, aggregate intrinsic value $ 145  
Weighted-Average Remaining Contractual Life (in years)    
Stock Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term 3 years 5 months 26 days 3 years 9 months 1 day
Stock Options, Vested and Expected to Vest, Exercisable, Weighted Average Remaining Contractual Term 3 years 1 month 24 days