CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Parenthetical) (USD $)	12 Months Ended
	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012
Class A Common Stock [Member]
Common stock, dividends per share declared (in dollars per share)	$ 1.01	$ 1.00	$ 0.99
7.5% Series D Preferred Stock [Member]
Preferred stock, dividend rate (in hundredths)	7.50%	7.50%	7.50%
Series G Preferred Stock [Member]
Preferred stock, dividend rate (in hundredths)	6.75%
7.125% Series F Preferred Stock [Member]
Preferred stock, dividend rate (in hundredths)	7.125%	7.125%	7.125%
Common Stock [Member]
Common stock, dividends per share declared (in dollars per share)	$ 0.9	$ 0.90	$ 0.90