CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY Unaudited (Parenthetical) - $ / shares	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Common stock, per share	$ 0.39	$ 0.38
Preferred stock Series H
Preferred stock, per share	637.50	637.50
Preferred stock Series I
Preferred stock, per share	1,242.18	1,343.40
Preferred stock Series J
Preferred stock, per share	$ 1,225.00	$ 391.32