CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY (UNAUDITED) (Parenthetical)	9 Months Ended
	Jul. 31, 2018 $ / shares
Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock, dividends per share declared (in dollars per share)	$ 0.72
Class A Common Stock [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common stock, dividends per share declared (in dollars per share)	$ 0.81
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)	$ 0.72
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)	$ 0.81