Comprehensive Income and Shareholders Equity (Details 2) (USD $) In Millions, except Share data in Thousands, unless otherwise specified	3 Months Ended			6 Months Ended
	Apr. 30, 2012	Jul. 31, 2011	Apr. 30, 2011	Apr. 30, 2012	Apr. 30, 2011
Components of Shareholders' Equity
Beginning Balance				$ 1,392.2
Net income	36.2		50.6	60.8	91.7
Other comprehensive income (loss):
Foreign currency translation				(7.3)
Interest rate and other derivatives, net of income tax expense of $0.1			0.3	(0.2)	0.8
Minimum pension liability adjustment, net of tax	(0.5)		(1.0)	3.8	(0.9)
Comprehensive income				57.1
Other noncontrolling interests		24.7		3.7
Dividends paid	(24.5)		(24.5)	(48.8)	(48.8)
Stock options exercised				0.7
Restricted stock executives and directors				0.9
Long-term incentive shares issued				6.1
Ending Balance	1,411.9			1,411.9
Capital Stock [Member]
Components of Shareholders' Equity
Beginning Balance				113.8
Beginning Balance, Shares				47,093
Other comprehensive income (loss):
Stock options exercised				0.6
Stock options exercised, Shares				45
Restricted stock executives and directors				0.9
Restricted stock executives and directors, Shares				19
Long-term incentive shares issued				5.8
Long-term incentive shares issued, Shares				134
Ending Balance	121.1			121.1
Ending Balance, Shares	47,291			47,291
Treasury Stock [Member]
Components of Shareholders' Equity
Beginning Balance				(132.0)
Beginning Balance, Shares				29,749
Other comprehensive income (loss):
Stock options exercised				0.1
Stock options exercised, Shares				(45)
Restricted stock executives and directors, Shares				(19)
Long-term incentive shares issued				0.3
Long-term incentive shares issued, Shares				(134)
Ending Balance	(131.6)			(131.6)
Ending Balance, Shares	29,551			29,551
Retained Earnings [Member]
Components of Shareholders' Equity
Beginning Balance				1,401.7
Net income				60.7
Other comprehensive income (loss):
Dividends paid				(48.8)
Ending Balance	1,413.6			1,413.6
Noncontrolling interest [Member]
Components of Shareholders' Equity
Beginning Balance				156.8
Net income				0.1
Other comprehensive income (loss):
Foreign currency translation				(22.3)
Other noncontrolling interests				3.7
Ending Balance	138.3			138.3
Accumulated Other Comprehensive Income (Loss) [Member]
Components of Shareholders' Equity
Beginning Balance				(148.1)
Other comprehensive income (loss):
Foreign currency translation				15.0
Interest rate and other derivatives, net of income tax expense of $0.1				(0.2)
Minimum pension liability adjustment, net of tax				3.8
Ending Balance	$ (129.5)			$ (129.5)