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FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables)
 12 Months Ended
Dec. 31, 2014
Fair Value Disclosures [Abstract]  
Carrying Values and Fair Values of Non-Current Financial Assets and Liabilities
We show the carrying values and the fair values of noncurrent financial assets and liabilities that qualify as financial instruments, determined under current guidance for disclosures on the fair value of financial instruments, in the following table:

 
At Year-End 2014
 
At Year-End 2013
($ in millions)
Carrying
Amount
 
Fair Value
 
Carrying
Amount
 
Fair Value
Senior, mezzanine, and other loans
$
215

 
$
214

 
$
142

 
$
145

Marketable securities and other debt securities
44

 
44

 
111

 
111

Total noncurrent financial assets
$
259

 
$
258

 
$
253

 
$
256

 
 
 
 
 
 
 
 
Senior Notes
$
(2,272
)
 
$
(2,370
)
 
$
(2,185
)
 
$
(2,302
)
Commercial paper
(1,072
)
 
(1,072
)
 
(834
)
 
(834
)
Other long-term debt
(108
)
 
(122
)
 
(123
)
 
(124
)
Other noncurrent liabilities
(57
)
 
(57
)
 
(50
)
 
(50
)
Total noncurrent financial liabilities
$
(3,509
)
 
$
(3,621
)
 
$
(3,192
)
 
$
(3,310
)