Segment Information (Schedule Of Segment Information) (Details) - USD ($) $ in Millions	3 Months Ended
Dec. 30, 2018	Dec. 31, 2017
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	$ 24.8	$ 51.3
Corporate expenses	7.5	8.5
Interest expense	57.0	75.4
Depreciation and amortization	66.0	38.5
Share based compensation	6.0	4.5
Acquisition and integration related charges	1.6	5.3
Restructuring and related charges	9.1	17.1
HPC divestiture related charges	4.7
Inventory acquisition step-up		0.8
Pet safety recall	0.6	7.3
Spectrum merger related transaction charges		2.8
Non-recurring HRG operating costs		4.3
Other	3.2
Income (loss) from operations before income taxes	(32.9)	(23.3)
Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	122.8	141.2
SB/RH [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	26.2	62.0
Corporate expenses	6.6	8.3
Interest expense	43.2	38.5
Depreciation and amortization	66.0	38.4
Share based compensation	5.6	3.5
Acquisition and integration related charges	1.6	5.3
Restructuring and related charges	9.1	17.1
HPC divestiture related charges	4.7
Inventory acquisition step-up		0.8
Pet safety recall	0.6	7.3
Other	3.2
Income (loss) from operations before income taxes	(17.8)	22.0
SB/RH [Member] \| Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	122.8	141.2
Hardware & Home Improvement [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Restructuring and related charges	2.8	15.2
Hardware & Home Improvement [Member] \| Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	55.6	60.0
Hardware & Home Improvement [Member] \| SB/RH [Member] \| Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	55.6	60.0
Home And Personal Care [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Restructuring and related charges	0.2
Home And Personal Care [Member] \| Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	35.0	41.7
Home And Personal Care [Member] \| SB/RH [Member] \| Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	3.1	5.4
Global Pet Supplies [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Restructuring and related charges	2.6	0.6
Global Pet Supplies [Member] \| Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	29.1	34.1
Global Pet Supplies [Member] \| SB/RH [Member] \| Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	35.0	41.7
Home and Garden [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Restructuring and related charges	0.7
Home and Garden [Member] \| Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	3.1	5.4
Home and Garden [Member] \| SB/RH [Member] \| Operating Segments [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	$ 29.1	$ 34.1

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