v2.4.0.6
Fair Value Measurements (Details) (USD $)
In Millions, unless otherwise specified
Mar. 31, 2013
Dec. 31, 2012
Trading securities $ 4,535 $ 4,027
Available-for-sale securities 404 464
Equity warrants   2
Interest rate swap agreements 180 210
Cross-currency swap agreements, assets   30
Foreign exchange contracts, assets 17 6
Fair value, assets measured on recurring basis, total 5,136 4,739
Derivative component of prepaid forward sale agreements and indexed debt instruments 2,894 2,305
Contractual obligations 1,080 1,055
Contingent consideration 699 587
Foreign exchange contracts, liabilities 18 14
Cross-currency swap agreements, liabilities 28  
Fair value liabilities measured on recurring basis 4,719 3,961
Fair Value, Inputs, Level 1 [Member]
   
Trading securities 4,535  
Available-for-sale securities 288  
Fair value, assets measured on recurring basis, total 4,823  
Fair Value, Inputs, Level 2 [Member]
   
Available-for-sale securities 99  
Interest rate swap agreements 180  
Foreign exchange contracts, assets 17  
Fair value, assets measured on recurring basis, total 296  
Derivative component of prepaid forward sale agreements and indexed debt instruments 2,894  
Foreign exchange contracts, liabilities 18  
Cross-currency swap agreements, liabilities 28  
Fair value liabilities measured on recurring basis 2,940  
Fair Value, Inputs, Level 3 [Member]
   
Available-for-sale securities 17  
Fair value, assets measured on recurring basis, total 17  
Contractual obligations 1,080  
Contingent consideration 699  
Fair value liabilities measured on recurring basis $ 1,779