Guarantor Statements - SB/RH (Statement Of Income) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 29, 2019	Dec. 30, 2018
Condensed Income Statements, Captions [Line Items]
Net sales	$ 871.5	$ 880.3
Cost of goods sold	592.5	573.7
Restructuring and related charges	9.9	0.9
Gross profit	269.1	305.7
Selling	146.1	155.6
General and administrative	80.4	99.3
Research and development	9.9	11.1
Restructuring and related charges	17.5	8.2
Transaction related charges	4.1	6.3
Write-off from impairment of goodwill	32.8
Write-off from impairment of intangible assets	24.2
Total operating expenses	315.0	280.5
Operating (loss) income	(45.9)	25.2
Interest expense (income)	34.8	57.0
Other non-operating (income) expense, net	(43.7)	0.7
(Loss) income from continuing operations before income taxes	(37.0)	(32.5)
Income tax (benefit) expense	0.7	(3.4)
Net (loss) income from continuing operations	(37.7)	(29.1)
Income (loss) from discontinued operations, net of tax	2.8	(83.2)
Net (loss) income	(34.9)	(112.3)
Net income (loss) attributable to non-controlling interest	0.9	0.2
Net (loss) income attributable to controlling interest	(35.8)	(112.5)
Parent [Member]
Condensed Income Statements, Captions [Line Items]
Net sales	409.7	433.7
Cost of goods sold	306.0	318.8
Restructuring and related charges	0.4
Gross profit	103.3	114.9
Selling	54.7	61.3
General and administrative	46.0	67.5
Research and development	5.0	5.7
Restructuring and related charges	15.9	4.2
Transaction related charges	1.4	4.1
Total operating expenses	123.0	142.8
Operating (loss) income	(19.7)	(27.9)
Interest expense (income)	42.5	36.8
Other non-operating (income) expense, net	(28.2)	(23.1)
(Loss) income from continuing operations before income taxes	(34.0)	(41.6)
Income tax (benefit) expense	3.2	(22.1)
Net (loss) income from continuing operations	(37.2)	(19.5)
Income (loss) from discontinued operations, net of tax	2.8	(83.8)
Net (loss) income	(34.4)	(103.3)
Net (loss) income attributable to controlling interest	(34.4)	(103.3)
SB/RH [Member]
Condensed Income Statements, Captions [Line Items]
Net sales	871.5	880.3
Cost of goods sold	592.5	573.7
Restructuring and related charges	9.9	0.9
Gross profit	269.1	305.7
Selling	146.1	155.6
General and administrative	79.5	97.9
Research and development	9.9	11.1
Restructuring and related charges	17.5	8.2
Transaction related charges	4.1	6.3
Write-off from impairment of goodwill	32.8
Write-off from impairment of intangible assets	24.2
Total operating expenses	314.1	279.1
Operating (loss) income	(45.0)	26.6
Interest expense (income)	34.6	43.2
Other non-operating (income) expense, net	(43.7)	0.8
(Loss) income from continuing operations before income taxes	(35.9)	(17.4)
Income tax (benefit) expense	0.9	1.6
Net (loss) income from continuing operations	(36.8)	(19.0)
Income (loss) from discontinued operations, net of tax	2.8	(83.2)
Net (loss) income	(34.0)	(102.2)
Net income (loss) attributable to non-controlling interest	0.9	0.2
Net (loss) income attributable to controlling interest	(34.9)	(102.4)
Eliminations [Member]
Condensed Income Statements, Captions [Line Items]
Net sales	(350.5)	(372.5)
Cost of goods sold	(351.0)	(372.5)
Gross profit	0.5
General and administrative		(0.7)
Total operating expenses		(0.7)
Operating (loss) income	0.5	0.7
Interest expense (income)	(0.1)
Other non-operating (income) expense, net	(9.4)	46.7
(Loss) income from continuing operations before income taxes	10.0	(46.0)
Income tax (benefit) expense	0.3	(0.4)
Net (loss) income from continuing operations	9.7	(45.6)
Income (loss) from discontinued operations, net of tax		74.1
Net (loss) income	9.7	28.5
Net (loss) income attributable to controlling interest	9.7	28.5
Guarantor Subsidiaries [Member]
Condensed Income Statements, Captions [Line Items]
Net sales	285.6	287.2
Cost of goods sold	225.0	219.3
Restructuring and related charges	1.5
Gross profit	59.1	67.9
Selling	28.1	27.3
General and administrative	20.8	19.1
Research and development	2.7	2.4
Restructuring and related charges	0.2	0.6
Transaction related charges	0.5	0.7
Total operating expenses	52.3	50.1
Operating (loss) income	6.8	17.8
Interest expense (income)	(3.8)	5.5
Other non-operating (income) expense, net	7.5	(23.4)
(Loss) income from continuing operations before income taxes	3.1	35.7
Income tax (benefit) expense	(0.4)	13.2
Net (loss) income from continuing operations	3.5	22.5
Income (loss) from discontinued operations, net of tax		(76.4)
Net (loss) income	3.5	(53.9)
Net (loss) income attributable to controlling interest	3.5	(53.9)
Nonguarantor Subsidiaries [Member]
Condensed Income Statements, Captions [Line Items]
Net sales	526.7	531.9
Cost of goods sold	412.5	408.1
Restructuring and related charges	8.0	0.9
Gross profit	106.2	122.9
Selling	63.3	67.0
General and administrative	12.7	12.0
Research and development	2.2	3.0
Restructuring and related charges	1.4	3.4
Transaction related charges	2.2	1.5
Write-off from impairment of goodwill	32.8
Write-off from impairment of intangible assets	24.2
Total operating expenses	138.8	86.9
Operating (loss) income	(32.6)	36.0
Interest expense (income)	(4.0)	0.9
Other non-operating (income) expense, net	(13.6)	0.6
(Loss) income from continuing operations before income taxes	(15.0)	34.5
Income tax (benefit) expense	(2.2)	10.9
Net (loss) income from continuing operations	(12.8)	23.6
Income (loss) from discontinued operations, net of tax		2.9
Net (loss) income	(12.8)	26.5
Net income (loss) attributable to non-controlling interest	0.9	0.2
Net (loss) income attributable to controlling interest	$ (13.7)	$ 26.3