Investments (Tables)

12 Months Ended

Dec. 31, 2015

Equity Method Investments and Joint Ventures [Abstract]

Investments

Investments

($ in millions)	2015		2014
Investments in equity affiliates	$	221	$	295
Marketable equity securities - Trading (See Note 9)	77		74
Other	69		74
Total	$	367	$	443