Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net (loss) income	$ (25.9)	$ 432.7	$ 591.5	$ 988.1
Other comprehensive income (loss)
Foreign currency translation loss	(0.4)	(61.5)	(18.6)	(43.2)
Deferred tax effect	0.1	2.7	(4.8)	6.6
Deferred tax valuation allowance		(0.3)		(0.3)
Net unrealized loss on foreign currency translation	(0.3)	(59.1)	(23.4)	(36.9)
Unrealized (loss) gain on derivative instruments
Unrealized (loss) gain on hedging activity before reclassification	(6.6)	40.6	16.9	21.4
Net reclassification for (gain) loss to income from continuing operations	(2.5)	1.8	(8.2)	4.0
Net reclassification for (gain) loss to income from discontinued operations		(0.5)	0.5	3.0
Unrealized (loss) gain on hedging instruments after reclassification	(9.1)	41.9	9.2	28.4
Deferred tax effect	2.4	(11.5)	(2.6)	(7.8)
Net unrealized (loss) gain on hedging derivative instruments	(6.7)	30.4	6.6	20.6
Defined benefit pension gain
Defined benefit pension gain before reclassification	0.1	2.8	0.9	0.6
Net reclassification for loss to income from continuing operations	0.5	0.6	1.5	1.9
Net reclassification for loss to income from discontinued operations		0.2	0.2	0.5
Defined benefit pension gain after reclassification	0.6	3.6	2.6	3.0
Deferred tax effect	(0.1)	(0.7)	(0.7)	(0.5)
Net defined benefit pension gain	0.5	2.9	1.9	2.5
Unrealized investment gain
Unrealized investment gain before reclassification				26.0
Net reclassification for gain to income from discontinued operations				(6.3)
Unrealized gain on investments after reclassification				19.7
Adjustments to intangible assets				(0.9)
Deferred tax effect				(6.7)
Net unrealized gain on investments				12.1
Deconsolidation of discontinued operations			21.9	(445.9)
Net change to derive comprehensive (loss) income for the periods	(6.5)	(25.8)	7.0	(447.6)
Comprehensive (loss) income	(32.4)	406.9	598.5	540.5
Comprehensive income (loss) attributable to non-controlling interest	(0.1)	(10.1)	(0.1)	(2.5)
Comprehensive (loss) income attributable to controlling interest	(32.3)	417.0	598.6	543.0
SB/RH [Member]
Net (loss) income	(30.1)		639.0
Other comprehensive income (loss)
Foreign currency translation loss	(0.4)		(18.6)
Deferred tax effect	0.1		(4.8)
Net unrealized loss on foreign currency translation	(0.3)		(23.4)
Unrealized (loss) gain on derivative instruments
Unrealized (loss) gain on hedging activity before reclassification	(6.6)		16.9
Net reclassification for (gain) loss to income from continuing operations	(2.5)		(8.2)
Net reclassification for (gain) loss to income from discontinued operations			0.5
Unrealized (loss) gain on hedging instruments after reclassification	(9.1)		9.2
Deferred tax effect	2.4		(2.6)
Net unrealized (loss) gain on hedging derivative instruments	(6.7)		6.6
Defined benefit pension gain
Defined benefit pension gain before reclassification	0.1		0.9
Net reclassification for loss to income from continuing operations	0.5		1.5
Net reclassification for loss to income from discontinued operations			0.2
Defined benefit pension gain after reclassification	0.6		2.6
Deferred tax effect	(0.1)		(0.7)
Net defined benefit pension gain	0.5		1.9
Unrealized investment gain
Deconsolidation of discontinued operations			21.9
Net change to derive comprehensive (loss) income for the periods	(6.5)		7.0
Comprehensive (loss) income	(36.6)		646.0
Comprehensive income (loss) attributable to non-controlling interest	(0.1)		(0.1)
Comprehensive (loss) income attributable to controlling interest	$ (36.5)		$ 646.1
Three Month Periods Ended July 1, 2018 [Member] | SB/RH [Member]
Net (loss) income		73.9
Other comprehensive income (loss)
Foreign currency translation loss		(61.5)
Deferred tax effect		2.7
Deferred tax valuation allowance		(0.3)
Net unrealized loss on foreign currency translation		(59.1)
Unrealized (loss) gain on derivative instruments
Unrealized (loss) gain on hedging activity before reclassification		40.6
Net reclassification for (gain) loss to income from continuing operations		1.8
Net reclassification for (gain) loss to income from discontinued operations		(0.5)
Unrealized (loss) gain on hedging instruments after reclassification		41.9
Deferred tax effect		(11.5)
Net unrealized (loss) gain on hedging derivative instruments		30.4
Defined benefit pension gain
Defined benefit pension gain before reclassification		2.8
Net reclassification for loss to income from continuing operations		0.6
Net reclassification for loss to income from discontinued operations		0.2
Defined benefit pension gain after reclassification		3.6
Deferred tax effect		(0.7)
Net defined benefit pension gain		2.9
Unrealized investment gain
Net change to derive comprehensive (loss) income for the periods		(25.8)
Comprehensive (loss) income		48.1
Comprehensive income (loss) attributable to non-controlling interest		(0.6)
Comprehensive (loss) income attributable to controlling interest		$ 48.7
Nine Month Periods Ended July 1, 2018 [Member] | SB/RH [Member]
Net (loss) income				269.3
Other comprehensive income (loss)
Foreign currency translation loss				(43.2)
Deferred tax effect				6.6
Deferred tax valuation allowance				(0.3)
Net unrealized loss on foreign currency translation				(36.9)
Unrealized (loss) gain on derivative instruments
Unrealized (loss) gain on hedging activity before reclassification				21.4
Net reclassification for (gain) loss to income from continuing operations				4.0
Net reclassification for (gain) loss to income from discontinued operations				3.0
Unrealized (loss) gain on hedging instruments after reclassification				28.4
Deferred tax effect				(7.8)
Net unrealized (loss) gain on hedging derivative instruments				20.6
Defined benefit pension gain
Defined benefit pension gain before reclassification				0.6
Net reclassification for loss to income from continuing operations				1.9
Net reclassification for loss to income from discontinued operations				0.5
Defined benefit pension gain after reclassification				3.0
Deferred tax effect				(0.5)
Net defined benefit pension gain				2.5
Unrealized investment gain
Net change to derive comprehensive (loss) income for the periods				(13.8)
Comprehensive (loss) income				255.5
Comprehensive income (loss) attributable to non-controlling interest				(0.1)
Comprehensive (loss) income attributable to controlling interest				$ 255.6