Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Incentive Compensation Plans (Narrative) (Details)

v3.10.0.1
Stock-Based Incentive Compensation Plans (Narrative) (Details) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
3 Months Ended 9 Months Ended
Sep. 29, 2018
Sep. 30, 2017
Sep. 29, 2018
Sep. 30, 2017
Employee Stock Option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross 1.0 0.9 1.1  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value $ 8.08 $ 5.46 $ 7.62  
Restricted Stock Units        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted stock units, shares granted (in shares) 8.8 8.3 12.0 10.4
Restricted stock units, shares granted, weighted average grant date fair value (in usd per share) $ 19.81 $ 13.24 $ 17.83 $ 13.03
ESPP        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares of common stock purchased under ESPP (in shares) 2.2      
Purchase price of common stock purchased under ESPP (in usd per share) $ 9.57   9.57  
Cash proceeds from purchases under ESPP $ 21      
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value $ 3.42   $ 3.42  
Performance Shares [Member] | 2017 PRSU Grants [Member] | 100% payout level [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted stock units, shares granted (in shares)       0.8
Restricted stock units, shares granted, weighted average grant date fair value (in usd per share)       $ 17.18
Performance Shares [Member] | 2018 PRSU Grants [Member] | 100% payout level [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Restricted stock units, shares granted (in shares) 0.8   1.0  
Restricted stock units, shares granted, weighted average grant date fair value (in usd per share) $ 23.97   $ 21.67