SEGMENT INFORMATION - Schedule of Segment Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 03, 2022	Apr. 04, 2021	Apr. 03, 2022	Apr. 04, 2021
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	$ 88.9	$ 115.8	$ 147.7	$ 230.8
Corporate	9.9	8.3	19.4	17.5
Interest expense	24.7	52.8	46.4	76.0
Depreciation and amortization	25.7	30.2	51.1	57.2
Share and incentive based compensation	6.6	7.2	12.2	14.2
Restructuring and related charges	16.4	4.3	33.8	13.3
Transaction related charges	20.2	8.2	35.1	27.2
Global ERP Transformation	3.2	0.0	3.2	0.0
Unallocated shared costs	6.9	6.7	13.8	13.4
Non-cash purchase accounting adjustments	3.5	2.6	3.5	3.4
Gain on Energizer investment	0.0	(0.9)	0.0	(6.9)
Legal and environmental remediation reserves	0.0	0.0	(0.5)	6.0
Coevorden tolling related charges	1.5	1.5	3.0	3.1
Other	2.2	0.2	4.8	0.1
(Loss) income from continuing operations before income taxes	(31.9)	(5.3)	(78.1)	6.3
HPC
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	10.6	25.4	38.0	76.3
GPC
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	40.6	55.6	79.3	109.2
H&G
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	37.7	34.8	30.4	45.3
SB/RH
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	88.9	115.8	147.7	230.8
Corporate	9.6	8.1	18.9	16.7
Interest expense	24.8	52.9	46.7	76.1
Depreciation and amortization	25.7	30.2	51.1	57.2
Share and incentive based compensation	6.2	6.8	11.8	13.6
Restructuring and related charges	16.4	4.3	33.8	13.3
Transaction related charges	20.2	8.2	35.1	27.2
SAP S/4 HANA ERP Transformation	3.2	0.0	3.2	0.0
Unallocated shared costs	6.9	6.7	13.8	13.4
Non-cash purchase accounting adjustments	3.5	2.6	3.5	3.4
Gain on Energizer investment	0.0	(0.9)	0.0	(6.9)
Legal and environmental remediation reserves	0.0	0.0	(0.5)	6.0
Coevorden tolling related charges	1.5	1.5	3.0	3.1
Other	2.1	0.1	4.4	0.1
(Loss) income from continuing operations before income taxes	(31.2)	(4.7)	(77.1)	7.6
SB/RH | HPC
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	10.6	25.4	38.0	76.3
SB/RH | GPC
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	40.6	55.6	79.3	109.2
SB/RH | H&G
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	$ 37.7	$ 34.8	$ 30.4	$ 45.3