Statement of Changes in Consolidated Equity (Unaudited) (Parenthetical) - $ / shares	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Common stock, dividends per share	$ 0.18	$ 0.06	$ 0.36	$ 0.12
Preferred Class A [Member]
Preferred, dividends per share	1.875	1.875	3.7500	3.75
Preferred Class B [Member]
Preferred, dividends per share	$ 6.7188	$ 6.7188	$ 20.1563	$ 20.15625