Other Comprehensive Income Items (Details 2) - USD ($) $ in Millions	3 Months Ended
	Jan. 31, 2016	Jan. 31, 2015
Other comprehensive income (loss), before tax
Interest expense	$ (89.6)	$ (74.6)
Administrative and operating expenses	(101.8)	(96.4)
Total other comprehensive income (loss), before tax	(12.6)	(49.7)
Other comprehensive income (loss), tax (expense) credit
Total other comprehensive income (loss), tax (expense) credit		0.5
Other comprehensive income (loss), after tax
Other comprehensive income (loss), net of income taxes	(12.6)	(49.2)
Cumulative Translation Adjustment
Other comprehensive income (loss), before tax
Total other comprehensive income (loss), before tax	(12.7)	(48.2)
Other comprehensive income (loss), after tax
Unrealized hedging gain (loss), after tax	(12.7)	(48.2)
Other comprehensive income (loss), net of income taxes	(12.7)	(48.2)
Unrealized Gain (Loss) on Derivatives
Other comprehensive income (loss), before tax
Unrealized hedging gain (loss), before tax	(2.0)	(3.6)
Total other comprehensive income (loss), before tax	0.1	(1.5)
Other comprehensive income (loss), tax (expense) credit
Unrealized hedging gain (loss), tax (expense) credit	0.7	1.3
Total other comprehensive income (loss), tax (expense) credit		0.5
Other comprehensive income (loss), after tax
Unrealized hedging gain (loss), after tax	(1.3)	(2.3)
Reclassification of realized (gain) loss, after tax	1.4	1.3
Other comprehensive income (loss), net of income taxes	0.1	(1.0)
Unrealized Gain (Loss) on Derivatives | Interest rate contracts | Reclassifications of realized gain (loss)
Other comprehensive income (loss), before tax
Interest expense	2.1	2.1
Other comprehensive income (loss), tax (expense) credit
Reclassification of realized (gain) loss, tax expense (credit)	(0.7)	(0.8)
Other comprehensive income (loss), after tax
Reclassification of realized (gain) loss, after tax	$ 1.4	$ 1.3