CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2017	Mar. 31, 2016
Net Income (Loss) Attributable to Parent	$ (82,100,000)	$ (24,700,000)	$ 130,100,000	$ (58,600,000)
Net income	(51,400,000)	15,900,000	209,400,000	22,900,000
Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest	3,000,000	63,500,000	5,000,000	73,000,000
Other comprehensive income (loss)
Foreign currency translation gain (loss)	21,700,000	28,200,000	(24,400,000)	7,700,000
Net unrealized (loss) gain on derivative instruments
Changes in derivative instruments before reclassification adjustment	(10,400,000)	(5,400,000)	32,800,000	(800,000)
Net reclassification adjustment for gains included in net income	(3,800,000)	(700,000)	(8,600,000)	(900,000)
Changes in derivative instruments after reclassification adjustment	(14,200,000)	(6,100,000)	24,200,000	(1,700,000)
Changes in deferred income tax asset/liability	4,500,000	2,400,000	(9,700,000)	1,500,000
OtherComprehensiveIncomeLossDerivativesQualifyingAsHedges,DeferredTaxValuationAllowanceAdjustment		800,000		1,000,000
Net unrealized (loss) gain on derivative instruments	(9,700,000)	(2,900,000)	14,500,000	800,000
Actuarial adjustments to pension plans:
Changes in actuarial adjustments before reclassification adjustment	(800,000)	(1,300,000)	2,400,000	(500,000)
Net reclassification adjustment for losses included in cost of goods sold	800,000	400,000	1,600,000	700,000
Net reclassification adjustment for losses included in selling and general and administrative expenses	500,000	200,000	1,000,000	500,000
Net actuarial adjustments to pension plans	600,000	(600,000)	3,900,000	500,000
Unrealized investment gains (losses):
Changes in unrealized investment gains (losses) before reclassification adjustment	314,500,000	252,100,000	(352,500,000)	(123,800,000)
Net reclassification adjustment for (gains) losses included in net income	(1,800,000)	(6,800,000)	(3,900,000)	300,000
Changes in unrealized investment gains (losses) after reclassification adjustment	312,700,000	245,300,000	(356,400,000)	(123,500,000)
Adjustments to intangible assets	(100,100,000)	(79,200,000)	125,200,000	56,100,000
Changes in deferred income tax asset/liability	(74,600,000)	(58,100,000)	80,100,000	22,100,000
Net unrealized gains (losses) on investments	138,000,000	108,000,000	(151,100,000.0)	(45,300,000)
Non-credit related other-than-temporary impairment:
Net change to derive comprehensive income (loss) for the period	150,600,000	132,700,000	(157,100,000)	(36,300,000)
Comprehensive income (loss)	99,200,000	148,600,000	52,300,000	(13,400,000)
Less: Comprehensive income (loss) attributable to the noncontrolling interest:
Net income	30,700,000	40,600,000	79,300,000	81,500,000
Other comprehensive income (loss)	32,000,000	31,100,000	(31,800,000)	(5,000,000)
Total comprehensive income (loss)	62,700,000	71,700,000	47,500,000	76,500,000
Comprehensive income (loss) attributable to the controlling interest	36,500,000	76,900,000	4,800,000	(89,900,000)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax	500,000	(700,000)	5,000,000	700,000
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, Tax	200,000	100,000	$ (1,100,000)	$ (200,000)
Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Change in Deferred Tax Allowance	$ 100,000	$ 0