Quarterly report pursuant to Section 13 or 15(d)

Financial Instruments (Details) (Schedule of Available-For-Sale Securities and Fair Value Measurements)

v2.4.0.8
Financial Instruments (Details) (Schedule of Available-For-Sale Securities and Fair Value Measurements) (USD $)
In Millions, unless otherwise specified
Jun. 28, 2014
Dec. 28, 2013
Schedule of Available-for-sale Securities [Line Items]    
Cash and cash equivalents, at fair value $ 503 $ 869
Current marketable securities, at fair value 445 228
Noncurrent marketable securities, at fair value 0 90
Cash, cash equivalents and marketable securities, at fair value 948 1,187
Other assets, at fair value 19 18
Foreign currency contract, asset, at fair value 1  
Foreign currency contracts, liability, at fair value   (4)
Level 1
    
Schedule of Available-for-sale Securities [Line Items]    
Cash and cash equivalents, at fair value 6 19
Current marketable securities, at fair value 0 0
Noncurrent marketable securities, at fair value 0 2
Cash, cash equivalents and marketable securities, at fair value 6 21
Other assets, at fair value 33 32
Level 2
    
Schedule of Available-for-sale Securities [Line Items]    
Cash and cash equivalents, at fair value 125 421
Current marketable securities, at fair value 445 228
Noncurrent marketable securities, at fair value 0 88
Cash, cash equivalents and marketable securities, at fair value 570 737
Foreign currency contract, asset, at fair value 1  
Foreign currency contracts, liability, at fair value   (4)
Cash
    
Schedule of Available-for-sale Securities [Line Items]    
Cash and cash equivalents, at fair value 372 429
Cash, cash equivalents and marketable securities, at fair value 372 429
Money Market Funds
    
Schedule of Available-for-sale Securities [Line Items]    
Cash and cash equivalents, at fair value 6 19
Current marketable securities, at fair value 0 0
Noncurrent marketable securities, at fair value 0 2
Cash, cash equivalents and marketable securities, at fair value 6 21
Available-for-sale Securities Pledged as Collateral 19 18
Commercial Paper
    
Schedule of Available-for-sale Securities [Line Items]    
Cash and cash equivalents, at fair value 125 421
Current marketable securities, at fair value 400 178
Noncurrent marketable securities, at fair value 0  
Cash, cash equivalents and marketable securities, at fair value 525 599
Time Deposits
    
Schedule of Available-for-sale Securities [Line Items]    
Cash, cash equivalents and marketable securities, at fair value   50
Corporate Bonds
    
Schedule of Available-for-sale Securities [Line Items]    
Noncurrent marketable securities, at fair value 0 88
Cash, cash equivalents and marketable securities, at fair value 45 88
Mutual Funds
    
Schedule of Available-for-sale Securities [Line Items]    
Other assets, at fair value $ 14 $ 14