Quarterly report pursuant to Section 13 or 15(d)

Investments (Details 2)

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Investments (Details 2) (USD $)
In Millions
Jul. 01, 2011
Dec. 31, 2010
Available-for-sale securities, by type    
Available-for-sale securities, cost $ 864 $ 223
Available-for-sale securities, gross unrealized gains 373 267
Available-for-sale securities, gross unrealized losses (3) (5)
Available-for-sale securities, estimated fair value, total 1,234 485
Equity securities
   
Available-for-sale securities, by type    
Available-for-sale securities, cost 855 209
Available-for-sale securities, gross unrealized gains 373 267
Available-for-sale securities, gross unrealized losses (3) (5)
Available-for-sale securities, estimated fair value, total 1,225 471
Other securities
   
Available-for-sale securities, by type    
Available-for-sale securities, cost 9 14
Available-for-sale securities, estimated fair value, total $ 9 $ 14