Note 14 - Per Share Calculation (Details) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2014	Jul. 31, 2013
Note 14 - Per Share Calculation (Details) [Line Items]
Prepaid Stock Purchase Contracts, Shares Included in Basic Earnings Per Share			6.1
Tangible Equity Units, Rate	7.25%		7.25%
Exchangeable Note Unit Rate Stated Percentage	6.00%		6.00%
Non-Vested Stock and Outstanding Options [Member]
Note 14 - Per Share Calculation (Details) [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			1.3	1.6
Out of the Money Stock Options [Member]
Note 14 - Per Share Calculation (Details) [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	3.0	2.2	2.1	2.2
Exchangeable Debt [Member]
Note 14 - Per Share Calculation (Details) [Line Items]
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			15.2	16.1