Quarterly report pursuant to Section 13 or 15(d)

Investments (Details 5)

v2.4.0.8
Investments (Details 5) (USD $)
In Millions, unless otherwise specified
Sep. 27, 2013
Dec. 31, 2012
Investments [Abstracts]    
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis $ 1,285  
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value 1,267  
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Amortized Cost Basis 1,574  
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value 1,580  
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Amortized Cost Basis 149  
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value 153  
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis 335  
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value 330  
Available-for-sale Securities, Amortized Cost Basis 4,326 4,126
Cost Method Investments [Abstract]    
Cost-method Investments, Aggregate Carrying Amount 157 145
Held-to-maturity securities, by type    
Available-for-sale Securities Fair Value 4,687 4,593
Equity Securities [Member]
   
Investments [Abstracts]    
Available-for-sale Securities, Amortized Cost Basis 983 957
Held-to-maturity securities, by type    
Available-for-sale Securities Fair Value $ 1,357 $ 1,388