NEW YORK--(BUSINESS WIRE)--American International Group, Inc. (NYSE:AIG) today reported net income attributable to AIG of $1.8 billion, or $1.32 per diluted share, for the quarter ended June 30, 2015, compared to $3.1 billion, or $2.10 per diluted share, for the second quarter of 2014. Compared to the prior-year quarter, second quarter 2015 net income attributable to AIG declined primarily due to higher loss on extinguishment of debt from ongoing liability management activities, lower capital g