v2.4.0.6
Fair Value Measurements (Tables)
3 Months Ended
Mar. 31, 2013
Fair Value Measurements [Abstract]  
Fair Value Assets and Liabilities Measured on Recurring Basis
Recurring Fair Value Measures
  Fair Value as of
  March 31, 2013 December 31, 2012
(in millions)  Level 1 Level 2 Level 3 Total  Total
Assets           
Trading securities$ 4,535$ - $ - $ 4,535 $ 4,027
Available-for-sale securities  288  99  17  404   464
Interest rate swap agreements  -   180  -   180   210
Foreign exchange contracts  -   17  -   17   6
Cross-currency swap agreements  -   -   -   -    30
Equity warrants  -   -   -   -    2
Total$ 4,823$ 296$ 17$ 5,136 $ 4,739
Liabilities           
Derivative component of prepaid forward sale agreements           
 and indexed debt instruments$ - $ 2,894$ - $ 2,894 $ 2,305
Contractual obligations  -   -   1,080  1,080   1,055
Contingent consideration  -   -   699  699   587
Cross-currency swap agreements  -   28  -   28   -
Foreign exchange contracts  -   18  -   18   14
Total$ - $ 2,940$ 1,779$ 4,719 $ 3,961
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
     
Changes in Contractual Obligations and Contingent Consideration
(in millions) Contractual Obligations Contingent Consideration
Balance, December 31, 2012$ 1,055$ 587
Fair value adjustments  45  8
Payments  (20)  (67)
Redemption Transaction  -   171
Balance, March 31, 2013$ 1,080$ 699