Investments (Tables)

12 Months Ended

Dec. 31, 2014

Equity Method Investments and Joint Ventures [Abstract]

Investments

Investments

($ in millions)	2014		2013
Investments in equity affiliates	$	295	$	245
Marketable equity securities - Trading (See Note 9)	74		70
Other	74		78
Total	$	443	$	393