Loans Payable, Senior Notes and Mortgage Company Loan Facility Credit Facility (Details Textual) (USD $)	6 Months Ended		3 Months Ended	6 Months Ended
	Apr. 30, 2014	Oct. 31, 2013	Apr. 30, 2014 New Credit Facility [Member]	Apr. 30, 2014 New Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility, Maximum Borrowing Capacity			$ 1,035,000,000	$ 1,035,000,000
Line of Credit Facility, term of contract				5 years
Line of Credit Facility, Number of Banks included			15	15
Line of Credit Facility, Expiration Date				Aug. 01, 2018
Line of credit facility, available for letters of credit				0.7500
Mortgage Loan Facility Maximum Borrowing Capacity Increased			2,000,000,000	2,000,000,000
Debt Instrument, Interest Rate at Period End			1.85%	1.85%
Maximum Permissible Leverage Ratio				1.75 to 1.00
Minimum Net Worth Required for Compliance			2,450,000,000	2,450,000,000
Existing Leverage Ratio	.814
Tangible Net Worth			3,650,000,000	3,650,000,000
Line of Credit Facility, Amount Outstanding	95,000,000		95,000,000	95,000,000
Ability to repurchase common stock			1,710,000,000	1,710,000,000
Letters of Credit Outstanding, Amount	93,800,000		90,800,000	90,800,000
Repayments of Lines of Credit			$ 275,000,000