CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Statement of Stockholders' Equity [Abstract]
Net (loss) income	$ (1.6)	$ 68.1
Other comprehensive (loss) income
Foreign currency translation (losses) gains	(0.3)	2.7
Net unrealized gain on derivative instruments
Changes in derivative instruments before reclassification adjustment	0.9
Net reclassification adjustment for losses included in net income	0.9	0.4
Changes in derivative instruments after reclassification adjustment	1.8	0.4
Changes in deferred income tax asset/liability	(0.5)
Deferred tax valuation allowance adjustments	0.1	(0.1)
Net unrealized gain on derivative instruments	1.4	0.3
Actuarial adjustments to pension plans
Changes in actuarial adjustments before reclassification adjustment	(0.4)	(0.7)
Net reclassification adjustment for losses included in cost of goods sold	0.1	0.3
Net reclassification adjustment for losses included in selling and general and administrative expenses	0.3	0.1
Net actuarial adjustments to pension plans		(0.3)
Unrealized investment gains (losses):
Changes in unrealized investment gains before reclassification adjustment	(9.9)	126.3
Net reclassification adjustment for gains included in net income	(8.1)	(172.0)
Changes in unrealized investment gains after reclassification adjustment	(18.0)	(45.7)
Adjustments to intangible assets	7.9	28.0
Changes in deferred income tax asset/liability	3.6	6.2
Net unrealized gain on investments	(6.5)	(11.5)
Non-credit related other-than-temporary impairment:
Net change to derive comprehensive (loss) for the period	(5.4)	(8.8)
Comprehensive (loss) income	(7.0)	59.3
Less: Comprehensive income (loss) attributable to the noncontrolling interest:
Net income (loss)	25.2	(6.0)
Other comprehensive (loss) income	(0.9)	1.3
Total comprehensive income (loss)	24.3	(4.7)
Comprehensive (loss) income attributable to the controlling interest	$ (31.3)	$ 64.0