Guarantor Statements - SB/RH (Statement Of Income) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 30, 2018	Dec. 31, 2017
Condensed Income Statements, Captions [Line Items]
Cost of goods sold	$ 568.4	$ 600.9
Restructuring and related charges	0.9	0.3
Gross profit	305.3	318.4
Selling	155.6	153.8
General and administrative	104.0	79.7
Research and development	11.1	11.5
Acquisition and integration related charges	1.6	5.3
Restructuring and related charges	8.2	16.8
Total operating expenses	280.5	267.1
Operating (loss) income	24.8	51.3
Interest expense	57.0	75.4
Other non-operating expense (income), net	0.7	(0.8)
(Loss) Income from continuing operations before income taxes	(32.9)	(23.3)
Income tax (benefit) expense	(3.4)	(120.5)
Net (loss) income from continuing operations	(29.5)	97.2
(Loss) income from discontinued operations, net of tax	(82.8)	481.6
Net (loss) income	(112.3)	578.8
Net income attributable to non-controlling interest	0.2	71.4
Net (loss) income attributable to controlling interest	(112.5)	507.4
Parent [Member]
Condensed Income Statements, Captions [Line Items]
Net sales	428.0	462.2
Cost of goods sold	313.5	346.8
Gross profit	114.5	115.4
Selling	61.3	61.4
General and administrative	71.1	30.7
Research and development	5.7	5.8
Acquisition and integration related charges	0.4	2.8
Restructuring and related charges	4.2	15.9
Total operating expenses	142.7	116.6
Operating (loss) income	(28.2)	(1.2)
Interest expense	36.8	33.6
Other non-operating expense (income), net	(23.1)	(85.7)
(Loss) Income from continuing operations before income taxes	(41.9)	50.9
Income tax (benefit) expense	(22.1)	(96.8)
Net (loss) income from continuing operations	(19.8)	147.7
(Loss) income from discontinued operations, net of tax	(83.4)	18.8
Net (loss) income	(103.2)	166.5
Net (loss) income attributable to controlling interest	(103.2)	166.5
SB/RH [Member]
Condensed Income Statements, Captions [Line Items]
Net sales	874.6	919.6
Cost of goods sold	568.4	600.9
Restructuring and related charges	0.9	0.3
Gross profit	305.3	318.4
Selling	155.6	153.8
General and administrative	102.6	69.0
Research and development	11.1	11.5
Acquisition and integration related charges	1.6	5.3
Restructuring and related charges	8.2	16.8
Total operating expenses	279.1	256.4
Operating (loss) income	26.2	62.0
Interest expense	43.2	38.5
Other non-operating expense (income), net	0.8	1.5
(Loss) Income from continuing operations before income taxes	(17.8)	22.0
Income tax (benefit) expense	1.6	(125.7)
Net (loss) income from continuing operations	(19.4)	147.7
(Loss) income from discontinued operations, net of tax	(82.8)	21.7
Net (loss) income	(102.2)	169.4
Net income attributable to non-controlling interest	0.2	0.9
Net (loss) income attributable to controlling interest	(102.4)	168.5
Eliminations [Member]
Condensed Income Statements, Captions [Line Items]
Net sales	(372.5)	(307.5)
Cost of goods sold	(372.5)	(307.0)
Gross profit		(0.5)
General and administrative	(0.7)
Total operating expenses	(0.7)
Operating (loss) income	0.7	(0.5)
Other non-operating expense (income), net	46.7	128.0
(Loss) Income from continuing operations before income taxes	(46.0)	(128.5)
Income tax (benefit) expense	(0.4)	(0.4)
Net (loss) income from continuing operations	(45.6)	(128.1)
(Loss) income from discontinued operations, net of tax	73.2	(35.6)
Net (loss) income	27.6	(163.7)
Net (loss) income attributable to controlling interest	27.6	(163.7)
Guarantor Subsidiaries [Member]
Condensed Income Statements, Captions [Line Items]
Net sales	287.2	218.7
Cost of goods sold	219.3	154.8
Gross profit	67.9	63.9
Selling	27.3	26.7
General and administrative	19.1	20.7
Research and development	2.4	2.2
Acquisition and integration related charges	0.7	1.3
Restructuring and related charges	0.6
Total operating expenses	50.1	50.9
Operating (loss) income	17.8	13.0
Interest expense	5.5	4.4
Other non-operating expense (income), net	(23.4)	(40.8)
(Loss) Income from continuing operations before income taxes	35.7	49.4
Income tax (benefit) expense	13.2	(36.4)
Net (loss) income from continuing operations	22.5	85.8
(Loss) income from discontinued operations, net of tax	(76.0)	21.0
Net (loss) income	(53.5)	106.8
Net (loss) income attributable to controlling interest	(53.5)	106.8
Nonguarantor Subsidiaries [Member]
Condensed Income Statements, Captions [Line Items]
Net sales	531.9	546.2
Cost of goods sold	408.1	406.3
Restructuring and related charges	0.9	0.3
Gross profit	122.9	139.6
Selling	67.0	65.7
General and administrative	13.1	17.6
Research and development	3.0	3.5
Acquisition and integration related charges	0.5	1.2
Restructuring and related charges	3.4	0.9
Total operating expenses	87.0	88.9
Operating (loss) income	35.9	50.7
Interest expense	0.9	0.5
Other non-operating expense (income), net	0.6
(Loss) Income from continuing operations before income taxes	34.4	50.2
Income tax (benefit) expense	10.9	7.9
Net (loss) income from continuing operations	23.5	42.3
(Loss) income from discontinued operations, net of tax	3.4	17.5
Net (loss) income	26.9	59.8
Net income attributable to non-controlling interest	0.2	0.9
Net (loss) income attributable to controlling interest	$ 26.7	$ 58.9