Condensed Consolidated Statements of Changes in Equity (Unaudited) (Parentheticals) (USD $)	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Dividends per Common Share	$ 0.225	$ 0.21
Series H Preferred Stock [Member]
Dividends per Depositary share	$ 0.4313	$ 0.4313
Series I Preferred Stock [Member]
Dividends per Depositary share	$ 0.3750	$ 0.3750
Series J Preferred Stock [Member]
Dividends per Depositary share	$ 0.3438	$ 0.3438
Series K Preferred Stock [Member]
Dividends per Depositary share	$ 0.3516	$ 0.3516