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Employee Stock Benefit Plans (Narrative) (Details) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended
Jan. 03, 2014
Dec. 28, 2012
Dec. 30, 2011
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term 4 years 1 month 2 days    
Options to purchase, number of shares outstanding 14,943,000 16,966,000  
Number of restricted stock units unvested 1,966,000 1,544,000  
Shares available for future grant 17,618,000    
Weighted average grant-date fair value, granted $ 28.17    
Exercise prices for options outstanding, lower limit $ 5.06    
Exercise prices for options outstanding, upper limit $ 31.05    
Closing stock price $ 34.57    
Total intrinsic value of options exercised $ 55.5 $ 89.3 $ 64.7
Total unamortized compensation expense 47.4    
Total unamortized compensation expense weighted-average recognition period, in years 2 years 10 months 28 days    
Stock Plan Assumed Through Acquisition [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Stock plan acquired 1    
Options to purchase, number of shares outstanding 257,520    
1990 Stock Option Plan [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Shares available for future grant 0    
Employee Stock Purchase Plan [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Percentage of lower fair market value to be purchased of common stock through payroll deductions 85.00%    
Shares issued 636,227 702,622 794,252
Stock-based compensation expense 4.0 3.9 3.3
Maximum number of shares authorized for grant 39,100,000    
Employee stock options granted term, in months 6 months    
Shares available for future grant 5,973,148    
Weighted average grant-date fair value, granted $ 8.05 $ 6.27 $ 5.41
Two Thousand Two Stock Plan [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Maximum number of shares authorized for grant 62,570,248    
Percentage of fair market value of Common Stock 100.00%    
2002 Stock Plan [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Shares available for future grant 0    
1992 Employee Stock Bonus Plan [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Options to purchase, number of shares outstanding 0    
Shares available for future grant 4,067    
Restricted Stock Units (RSUs) [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Stock-based compensation expense 12.2 8.6 9.4
Share units granted vesting period, in years 3 years    
Total unamortized compensation expense 39.2    
Total unamortized compensation expense weighted-average recognition period, in years 2 years 4 months 11 days    
Restricted Stock Units (RSUs) [Member] | Two Thousand Two Stock Plan [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Share units granted vesting percentage 100.00%    
Options to purchase, number of shares outstanding 14,685,605    
Number of restricted stock units unvested 1,966,175    
Shares available for future grant 17,614,173    
Share units granted vesting period, in years 3 years    
Employee Stock Option [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Weighted average grant-date fair value of stock options granted $ 7.90 $ 7.51 $ 7.62
Stock-based compensation expense $ 20.2 $ 20.3 $ 15.8
Non-Employee Director Stock Options [Member] | Two Thousand Two Stock Plan [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Stock options granted vesting rate 1/12th per month    
Share units granted vesting period, in years 1 year    
Non-Employee Director Stock Options [Member] | Two Thousand Two Stock Plan [Member] | Minimum [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term 84 months    
Non-Employee Director Stock Options [Member] | Two Thousand Two Stock Plan [Member] | Maximum [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term 120 months    
Stock Option Granted Prior To 2013 [Member] | Two Thousand Two Stock Plan [Member] | First Anniversary [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 20.00%    
Stock Option Granted Prior To 2013 [Member] | Two Thousand Two Stock Plan [Member] | Second Anniversary [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 40.00%    
Stock Option Granted Prior To 2013 [Member] | Two Thousand Two Stock Plan [Member] | After Second Anniversary [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 20.00%    
Stock Option Granted Prior To 2013 [Member] | Two Thousand Two Stock Plan [Member] | Fifth Anniversary [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 20.00%    
Stock Option Granted Prior To 2013 [Member] | Two Thousand Two Stock Plan [Member] | Minimum [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term 84 months    
Stock Option Granted Prior To 2013 [Member] | Two Thousand Two Stock Plan [Member] | Maximum [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term 120 months    
Stock Option Granted 2013 And After [Member] | Two Thousand Two Stock Plan [Member] | First Anniversary [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 25.00%    
Stock Option Granted 2013 And After [Member] | Two Thousand Two Stock Plan [Member] | Fourth Anniversary [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 25.00%    
Certain Stock Option Grants [Member] | Two Thousand Two Stock Plan [Member] | Second Anniversary [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 50.00%    
Certain Stock Option Grants [Member] | Two Thousand Two Stock Plan [Member] | Fourth Anniversary [Member]
     
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]      
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage 25.00%