v2.4.0.8
Cash Flow Information (Details) (USD $)
In Millions, unless otherwise specified
6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Cash payments    
Interest $ 259 $ 383
Income taxes 2,861 4,445
Net Purchases of Short-Term Investments    
Short-term investments purchased (97) (497)
Short-term investments sold 23 1,094
Net sale (purchases) of short-term investments (74) 597
Capital lease obligation $ 906