CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (UNAUDITED) (Parenthetical)	6 Months Ended
	Apr. 30, 2018 $ / shares
Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock, dividends per share declared (in dollars per share)	$ 0.48
Class A Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock, dividends per share declared (in dollars per share)	$ 0.54
6.75% Series G Preferred Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Preferred stock, dividend rate	6.75%
6.25% Series H Preferred Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Preferred stock, dividend rate	6.25%
Preferred Stock [Member] | 6.75% Series G Preferred Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Preferred stock, dividend rate	6.75%
Preferred Stock [Member] | 6.25% Series H Preferred Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Preferred stock, dividend rate	6.25%
Common Stock [Member] | Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock, dividends per share declared (in dollars per share)	$ 0.240
Common Stock [Member] | Class A Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock, dividends per share declared (in dollars per share)	$ 0.270