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. 26, 2014
Dec. 31, 2013
Investments [Abstracts]    
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis $ 1,240  
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value 1,241  
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Amortized Cost Basis 1,703  
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value 1,730  
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Amortized Cost Basis 129  
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value 139  
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis 380  
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value 385  
Available-for-sale Securities, Amortized Cost Basis 6,204 4,485
Cost Method Investments [Abstract]    
Cost-method Investments, Aggregate Carrying Amount 167 162
Held-to-maturity securities, by type    
Available-for-sale Securities Fair Value 7,696 4,842
Equity Securities [Member]
   
Investments [Abstracts]    
Available-for-sale Securities, Amortized Cost Basis 2,752 1,097
Held-to-maturity securities, by type    
Available-for-sale Securities Fair Value $ 4,201 $ 1,453