Annual report pursuant to Section 13 and 15(d)

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

v3.8.0.1
Common Stock and Stock-Based Incentive Compensation Plans (Details) (Stock Option Activities) - Stock Options - $ / shares
shares in Millions
 12 Months Ended
Dec. 30, 2017
Dec. 31, 2016
Dec. 26, 2015
Number of Shares      
Stock options, shares outstanding at beginning of year 20 32 36
Stock options, shares granted 1 2 8
Stock options, shares canceled (less than in 2017) (1) (9) (9)
Stock options, shares exercised (4) (5) (3)
Stock options, shares outstanding at end of year 17 20 32
Stock options, shares exercisable at end of year 13 13 21
Weighted- Average Exercise Price      
Stock options, shares outstanding at beginning of year, weighted average exercise price (USD per share) $ 4.15 $ 4.44 $ 4.78
Stock options, shares granted, weighted average exercise price (USD per share) 12.83 6.98 2.12
Stock options, shares canceled, weighted average exercise price (USD per share) 7.69 5.53 4.91
Stock options, shares exercised, weighted average exercise price (USD per share) 5.19 4.75 1.61
Stock options, shares outstanding at end of year, weighted average exercise price (USD per share) 4.32 4.15 4.44
Stock options, shares exercisable at end of year, weighted average exercise price (USD per share) $ 3.82 $ 4.32 $ 5.34