CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2016	Mar. 31, 2015
Net Income (Loss) Attributable to Parent	$ (34.8)	$ (228.3)	$ (68.7)	$ (338.1)
Net income (loss)	(1.5)	(237.5)	5.5	(343.9)
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	11.6	(243.3)	54.2	(366.7)
Other comprehensive income (loss)
Foreign currency translation gain (loss)	28.2	(43.6)	7.7	(78.1)
Net unrealized (loss) gain on derivative instruments
Changes in derivative instruments before reclassification adjustment	(5.4)	9.3	(0.8)	17.1
Net reclassification adjustment for gains included in net income	(0.7)	(7.0)	(0.9)	(11.8)
Changes in derivative instruments after reclassification adjustment	(6.1)	2.3	(1.7)	5.3
Changes in deferred income tax asset/liability	2.4	(0.9)	1.5	(0.9)
OtherComprehensiveIncomeLossDerivativesQualifyingAsHedges,DeferredTaxValuationAllowanceAdjustment	0.8		1.0	(1.0)
Net unrealized (loss) gain on derivative instruments	(2.9)	1.4	0.8	3.4
Actuarial adjustments to pension plans
Changes in actuarial adjustments before reclassification adjustment	(1.3)	2.8	(0.5)	3.7
Net reclassification adjustment for losses included in cost of goods sold	0.4	0.1	0.7	0.3
Net reclassification adjustment for losses included in selling and general and administrative expenses	0.2	0.3	0.5	0.5
Net actuarial adjustments to pension plans	(0.6)	2.4	0.5	3.4
Unrealized investment gains (losses):
Changes in unrealized investment gains (losses) before reclassification adjustment	252.1	110.3	(123.8)	102.3
Net reclassification adjustment for (gains) losses included in net income	(6.8)	58.0	0.3	62.1
Changes in unrealized investment gains (losses) after reclassification adjustment	245.3	168.3	(123.5)	164.4
Adjustments to intangible assets	(79.2)	(71.0)	56.1	(70.0)
Changes in deferred income tax asset/liability	(58.1)	(34.9)	22.1	(34.3)
Net unrealized gains (losses) on investments	108.0	62.4	(45.3)	60.1
Non-credit related other-than-temporary impairment:
Net change to derive comprehensive income (loss) for the period	132.7	22.6	(36.3)	(11.2)
Comprehensive income (loss)	131.2	(214.9)	(30.8)	(355.1)
Less: Comprehensive income (loss) attributable to the noncontrolling interest:
Net income (loss)	33.3	(9.2)	74.2	(5.8)
Other comprehensive income (loss)	31.1	(4.4)	(5.0)	(18.3)
Total comprehensive income (loss)	64.4	(13.6)	69.2	(24.1)
Comprehensive income (loss) attributable to the controlling interest	66.8	(201.3)	(100.0)	(331.0)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax	(0.7)	3.2	0.7	4.5
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Tax	$ 0.1	$ (0.8)	$ (0.2)	$ (1.1)