CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY Unaudited (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Common stock, per share	$ 0.13	$ 0.12
Preferred stock Series I
Preferred stock, per share	$ 414.06	$ 414.06
Preferred stock Series J
Preferred stock, per share	$ 612.50