XML 94 R49.htm IDEA: XBRL DOCUMENT v2.4.0.8
Investments and Related Matters Other Segments (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Schedule of Investments [Line Items]    
Investments $ 14,846 $ 12,261
Other Segments [Member]
   
Schedule of Investments [Line Items]    
Equity method investments 295 284
Other investments 138 151
Investments $ 433 $ 435