Condensed Consolidated Statements of Changes in Equity (Unaudited) (Parentheticals) (USD $)	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Dividends per Common share	$ 0.675	$ 0.63
Series H Preferred Stock [Member]
Dividends per Depositary share	$ 1.2938	$ 1.2938
Series I Preferred Stock [Member]
Dividends per Depositary share	$ 1.1250	$ 1.1250
Series J Preferred Stock [Member]
Dividends per Depositary share	$ 1.0313	$ 1.0313
Series K Preferred Stock [Member]
Dividends per Depositary share	$ 1.0547	$ 1.0547