SUBSEQUENT EVENTS (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended			0 Months Ended
	Oct. 31, 2014	Jul. 31, 2014	Apr. 30, 2014	Jan. 31, 2014	Oct. 31, 2013	Jul. 31, 2013	Apr. 30, 2013	Jan. 31, 2013	Oct. 31, 2014	Oct. 31, 2013	Oct. 31, 2012	Dec. 03, 2014	Dec. 31, 2014
Subsequent Events
Quarterly dividend declared (in dollars per share)	$ 0.60	$ 0.60	$ 0.51	$ 0.51	$ 0.51	$ 0.51	$ 0.51	$ 0.46	$ 2.22	$ 1.99	$ 1.79
Total assets					$ 505.0					$ 505.0
Total liabilities					120.4					120.4
Subsequent Event
Subsequent Events
Quarterly dividend declared (in dollars per share)												$ 0.60
Subsequent Event | Crop Insurance Operations
Subsequent Events
Total assets	725.0								725.0
Total liabilities	605.0								605.0
Subsequent Event | Financial Services | Australian dollar denominated medium-term notes due December 2019
Subsequent Events
Principal amount of notes issued													$ 227