Guarantor Statements - SB/RH (Statement Of Comprehensive Income) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 30, 2018	Dec. 31, 2017
Condensed Statement of Income Captions [Line Items]
Net (loss) income	$ (112.3)	$ 578.8
Net unrealized loss on foreign currency translation	(20.8)	(2.0)
Unrealized gain (loss) on derivative instruments	8.3	1.8
Defined benefit pension gain (loss)	1.5	0.1
Net change to derive comprehensive income (loss) for the period	(11.0)	(433.9)
Comprehensive (loss) income	(123.3)	144.9
Comprehensive loss attributable to non-controlling interest		2.5
Comprehensive (loss) income attributable to controlling interest	(123.3)	142.4
Parent [Member]
Condensed Statement of Income Captions [Line Items]
Net (loss) income	(103.2)	166.5
Net unrealized loss on foreign currency translation	(20.9)	(2.0)
Unrealized gain (loss) on derivative instruments	8.3	1.8
Defined benefit pension gain (loss)	1.5	0.1
Net change to derive comprehensive income (loss) for the period	(11.1)	(0.1)
Comprehensive (loss) income	(114.3)	166.4
Comprehensive (loss) income attributable to controlling interest	(114.3)	166.4
SB/RH [Member]
Condensed Statement of Income Captions [Line Items]
Net (loss) income	(102.2)	169.4
Net unrealized loss on foreign currency translation	(20.8)	(2.0)
Unrealized gain (loss) on derivative instruments	8.3	1.8
Defined benefit pension gain (loss)	1.4	0.1
Net change to derive comprehensive income (loss) for the period	(11.1)	(0.1)
Comprehensive (loss) income	(113.3)	169.3
Comprehensive loss attributable to non-controlling interest		0.2
Comprehensive (loss) income attributable to controlling interest	(113.3)	169.1
Eliminations [Member]
Condensed Statement of Income Captions [Line Items]
Net (loss) income	27.6	(163.7)
Net unrealized loss on foreign currency translation	42.8	4.2
Unrealized gain (loss) on derivative instruments	(6.1)	(8.6)
Defined benefit pension gain (loss)	(2.3)	(0.2)
Net change to derive comprehensive income (loss) for the period	34.4	(4.6)
Comprehensive (loss) income	62.0	(168.3)
Comprehensive (loss) income attributable to controlling interest	62.0	(168.3)
Guarantor Subsidiaries [Member]
Condensed Statement of Income Captions [Line Items]
Net (loss) income	(53.5)	106.8
Net unrealized loss on foreign currency translation	(21.5)	(2.0)
Unrealized gain (loss) on derivative instruments	3.0	4.3
Defined benefit pension gain (loss)	1.1	0.1
Net change to derive comprehensive income (loss) for the period	(17.4)	2.4
Comprehensive (loss) income	(70.9)	109.2
Comprehensive (loss) income attributable to controlling interest	(70.9)	109.2
Nonguarantor Subsidiaries [Member]
Condensed Statement of Income Captions [Line Items]
Net (loss) income	26.9	59.8
Net unrealized loss on foreign currency translation	(21.2)	(2.2)
Unrealized gain (loss) on derivative instruments	3.1	4.3
Defined benefit pension gain (loss)	1.1	0.1
Net change to derive comprehensive income (loss) for the period	(17.0)	2.2
Comprehensive (loss) income	9.9	62.0
Comprehensive loss attributable to non-controlling interest		0.2
Comprehensive (loss) income attributable to controlling interest	$ 9.9	$ 61.8