Quarterly report pursuant to Section 13 or 15(d)

Investments (Details 5)

v2.4.0.6
Investments (Details 5) (USD $)
In Millions, unless otherwise specified
Jun. 29, 2012
Dec. 31, 2011
Investments [Abstracts]    
Available-for-sale Securities, Debt Maturities, within One Year, Amortized Cost Basis $ 1,080  
Available-for-sale Securities, Debt Maturities, within One Year, Fair Value 1,070  
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Amortized Cost Basis 1,577  
Available-for-sale Securities, Debt Maturities, after One Through Five Years, Fair Value 1,570  
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Amortized Cost Basis 292  
Available-for-sale Securities, Debt Maturities, after Five Through Ten Years, Fair Value 307  
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis 368  
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value 368  
Held-to-maturity securities, within 1 year, amortized cost 0  
Held-to-maturity Securities, Debt Maturities, within One Year, Fair Value 0  
Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount 0  
Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Fair Value 0  
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount 0  
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Fair Value 0  
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount 0  
Held-to-maturity Securities, Debt Maturities, after Ten Years, Fair Value 0  
Available-for-sale Securities, Amortized Cost Basis 4,263 1,166
Cost Method Investments [Abstract]    
Cost-method Investments, Aggregate Carrying Amount 152 155
Held-to-maturity securities, by type    
Available-for-sale Securities Estimated Fair Value 4,760 1,401
Held-to-maturity securities, cost 0  
Held-to-maturity Securities, Fair Value 0  
Equity Securities [Member]
   
Held-to-maturity securities, by type    
Held-to-maturity securities, cost 0  
Held-to-maturity Securities, Fair Value 0  
Equity Securities [Member]
   
Investments [Abstracts]    
Available-for-sale Securities, Amortized Cost Basis 946 834
Held-to-maturity securities, by type    
Available-for-sale Securities Estimated Fair Value $ 1,445 $ 1,071