Statement of Changes in Consolidated Equity (Parenthetical) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Stockholders' Equity [Abstract]
Preferred, dividends per share	$ 0.09375	$ 1.875	$ 2.8125	$ 3.75
Common stock, dividends per share	$ 0.03	$ 0.06	$ 0.09	$ 0.12