Condensed Consolidated Statements Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Jul. 01, 2018	Jun. 30, 2018	Jul. 02, 2017	Jun. 30, 2017	Jul. 01, 2018	Jun. 30, 2018	Jul. 02, 2017	Jun. 30, 2017
Net income		$ 399.3		$ 39.8		$ 941.6		$ 249.2
Other comprehensive income (loss)
Foreign currency translation (loss) gain		(61.5)		31.9		(43.2)		4.0
Deferred tax effect		2.7		(1.8)		6.6		1.7
Deferred tax valuation allowance		(0.3)		0.2		(0.3)		0.2
Net unrealized (loss) gain on foreign currency translation		(59.1)		30.3		(36.9)		5.9
Unrealized gain (loss) on derivative instruments
Unrealized gain (loss) on hedging activity before reclassification		40.6		(44.3)		21.4		(11.1)
Net reclassification for loss (gain) to income from continuing operations		0.1		(0.3)		(0.3)		(0.6)
Net reclassification for loss (gain) to income from discontinued operations		1.2		(2.0)		7.3		(10.6)
Unrealized gain (loss) on hedging instruments after reclassification		41.9		(46.6)		28.4		(22.3)
Deferred tax effect		(11.5)		16.4		(7.8)		6.6
Net unrealized gain (loss) on hedging derivative instruments		30.4		(30.2)		20.6		(15.7)
Defined benefit pension gain (loss)
Defined benefit pension gain (loss) before reclassification		2.8		(5.4)		0.6		(3.0)
Net reclassification for loss to income from continuing operations		0.3		0.6		0.8		1.7
Net reclassification for loss to income from discontinued operations		0.5		0.8		1.6		2.3
Defined benefit pension gain (loss) after reclassification		3.6		(4.0)		3.0		1.0
Deferred tax effect		(0.7)		0.8		(0.5)		(0.3)
Net defined benefit pension gain (loss)		2.9		(3.2)		2.5		0.7
Unrealized investment gain
Unrealized investment gain before reclassification				358.3		26.0		5.8
Net reclassification for loss (gain) to income from discontinued operations				26.9		(6.3)		23.0
Unrealized gain on investments after reclassification				385.2		19.7		28.8
Adjustments to intangible assets				(113.6)		(0.9)		11.6
Deferred tax effect				(94.4)		(6.7)		(14.3)
Net unrealized gain on investments				177.2		12.1		26.1
Deconsolidation of HRG insurance operations						(445.9)
Net change to derive comprehensive (loss) income for the period		(25.8)		174.1		(447.6)		17.0
Comprehensive income (loss)		373.5		213.9		494.0		266.2
Comprehensive (loss) income attributable to non-controlling interest		(10.1)		71.2		(2.5)		118.7
Comprehensive income attributable to controlling interest		$ 383.6		$ 142.7		$ 496.5		$ 147.5
SB/RH Holdings, LLC [Member]
Net income	$ 60.1		$ 79.4		$ 242.4		$ 205.2
Other comprehensive income (loss)
Foreign currency translation (loss) gain	(61.5)		31.9		(43.2)		4.0
Deferred tax effect	2.7		(1.8)		6.6		1.7
Deferred tax valuation allowance	(0.3)		0.2		(0.3)		0.2
Net unrealized (loss) gain on foreign currency translation	(59.1)		30.3		(36.9)		5.9
Unrealized gain (loss) on derivative instruments
Unrealized gain (loss) on hedging activity before reclassification	40.6		(44.3)		21.4		(11.1)
Net reclassification for loss (gain) to income from continuing operations	0.1		(0.3)		(0.3)		(0.6)
Net reclassification for loss (gain) to income from discontinued operations	1.2		(2.0)		7.3		(10.6)
Unrealized gain (loss) on hedging instruments after reclassification	41.9		(46.6)		28.4		(22.3)
Deferred tax effect	(11.5)		16.4		(7.8)		6.6
Net unrealized gain (loss) on hedging derivative instruments	30.4		(30.2)		20.6		(15.7)
Defined benefit pension gain (loss)
Defined benefit pension gain (loss) before reclassification	2.8		(4.5)		0.6		(3.0)
Net reclassification for loss to income from continuing operations	0.3		0.6		0.8		1.7
Net reclassification for loss to income from discontinued operations	0.5		0.8		1.6		2.3
Defined benefit pension gain (loss) after reclassification	3.6		(3.1)		3.0		1.0
Deferred tax effect	(0.7)		0.8		(0.5)		(0.3)
Net defined benefit pension gain (loss)	2.9		(2.3)		2.5		0.7
Unrealized investment gain
Net change to derive comprehensive (loss) income for the period	(25.8)		(2.2)		(13.8)		(9.1)
Comprehensive income (loss)	34.3		77.2		228.6		196.1
Comprehensive (loss) income attributable to non-controlling interest	(0.6)		(0.2)		(0.1)		(0.4)
Comprehensive income attributable to controlling interest	$ 34.9		$ 77.4		$ 228.7		$ 196.5