Condensed Consolidated Statements of Changes in Equity (Unaudited) (Parentheticals) (USD $)	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Common Stock [Member]
Class Depositary Share	$ 0.63	$ 0.57
Series F Preferred Stock [Member]
Class Depositary Share		$ 1.0344
Series G Preferred Stock [Member]
Class Depositary Share		$ 1.4532
Series H Preferred Stock [Member]
Class Depositary Share	$ 1.2938	$ 1.2938
Series I Preferred Stock [Member]
Class Depositary Share	$ 1.125	$ 0.79583
Series J Preferred Stock [Member]
Class Depositary Share	$ 1.0313	$ 0.2521
Series K Preferred Stock [Member]
Class Depositary Share	$ 1.0547