Quarterly report pursuant to Section 13 or 15(d)

Investments (Details 5)

v3.2.0.727
Investments (Details 5) - USD ($)
$ in Millions
Jul. 03, 2015
Dec. 31, 2014
Investments [Abstracts]    
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Amortized Cost Basis $ 1,204  
Available-for-sale Securities, Debt Maturities, Next Twelve Months, Fair Value 1,204  
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Amortized Cost Basis 1,767  
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value 1,787  
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Amortized Cost Basis 119  
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value 134  
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis 326  
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value 336  
Available-for-sale Securities, Amortized Cost Basis 6,836 $ 6,483
Cost Method Investments [Abstract]    
Cost-method Investments, Aggregate Carrying Amount 188 166
Held-to-maturity securities, by type    
Available-for-sale Securities Fair Value 6,856 7,879
Equity Securities [Member]    
Investments [Abstracts]    
Available-for-sale Securities, Amortized Cost Basis 3,420 2,687
Held-to-maturity securities, by type    
Available-for-sale Securities Fair Value $ 3,395 $ 4,121