XML 17 R25.htm IDEA: XBRL DOCUMENT v2.4.0.6
Fair Value of Financial Instruments (Tables) (Unaudited)
3 Months Ended
Mar. 31, 2012
Fair Value Disclosures [Abstract]  
Fair value information of assets and liabilities measured at fair value on a recurring basis
The following table presents fair value information for those assets and liabilities measured at fair value on a recurring basis:
 
March 31, 2012
 
December 31, 2011
$ in millions
Carrying
Value
 
Fair
Value
 
Carrying
Value
 
Fair
Value
Financial Assets (Liabilities)
 
 
 
 
 
 
 
Marketable securities
 
 
 
 
 
 
 
Trading

$ 235

 

$ 235

 

$ 219

 

$ 219

Available-for-sale
5

 
5

 
4

 
4

Held-to-maturity time deposits

 

 
250

 
250

Derivatives
5

 
5

 
7

 
7

Long-term debt, including current portion

($3,938
)
 

($4,687
)
 

($3,940
)
 

($4,675
)