Segment Information (Schedule Of Segment Information) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 28, 2020	Jun. 30, 2019	Jun. 28, 2020	Jun. 30, 2019
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	$ 94.6	$ 92.8	$ 116.6	$ 159.9
Corporate	10.3	5.3	21.1	16.7
Interest expense	36.1	33.9	106.5	185.1
Depreciation and amortization	35.0	35.9	113.1	138.4
Share and incentive based compensation	14.2	15.6	43.3	38.7
Restructuring and related charges	12.2	20.7	61.6	42.2
Transaction related charges	6.1	4.8	17.4	16.4
Loss on assets held for sale	1.1	0.0	26.8	0.0
Write-off from impairment of intangible assets	0.0	0.0	24.2	0.0
(Gain) loss on Energizer investment	(60.1)	33.2	8.2	38.2
Foreign currency translation on multicurrency divestiture loans	4.5	7.7	5.0	29.5
GPC safety recall	0.0	0.0	0.0	0.7
Salus	0.2	0.0	0.6	0.0
Salus CLO debt extinguishment	(76.2)	0.0	(76.2)	0.0
Other	0.1	1.6	0.4	3.9
Income (loss) from continuing operations before income taxes	191.2	19.5	76.1	(89.4)
Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	174.7	178.2	428.1	420.4
SB/RH
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	96.2	94.1	122.8	163.7
Corporate	9.3	5.6	16.6	15.4
Interest expense	36.0	33.7	106.0	125.2
Depreciation and amortization	35.0	35.9	113.1	138.4
Share and incentive based compensation	13.8	15.2	42.3	37.6
Restructuring and related charges	12.2	20.7	61.6	42.2
Transaction related charges	6.1	4.8	17.4	16.4
Loss on assets held for sale	1.1	0.0	26.8	0.0
Write-off from impairment of intangible assets	0.0	0.0	24.2	0.0
(Gain) loss on Energizer investment	(60.1)	33.2	8.2	38.2
Foreign currency translation on multicurrency divestiture loans	4.5	7.7	4.9	29.5
GPC safety recall	0.0	0.0	0.0	0.7
Other	0.1	0.4	0.4	2.8
Income (loss) from continuing operations before income taxes	116.7	21.0	6.6	(26.0)
SB/RH | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	174.7	178.2	428.1	420.4
HHI
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Restructuring and related charges	0.3	1.1	0.9	4.3
HHI | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	43.6	67.7	156.0	175.9
HHI | SB/RH | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	43.6	67.7	156.0	175.9
HPC
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Restructuring and related charges	0.7	3.2	3.6	4.7
HPC | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	25.0	18.2	69.4	57.7
HPC | SB/RH | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	25.0	18.2	69.4	57.7
GPC
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Restructuring and related charges	2.1	1.4	18.8	6.4
GPC | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	50.6	39.0	122.1	100.9
GPC | SB/RH | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	50.6	39.0	122.1	100.9
H&G
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Restructuring and related charges	0.0	0.4	0.3	1.4
H&G | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	55.5	53.3	80.6	85.9
H&G | SB/RH | Operating Segments
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Total Segment Adjusted EBITDA	$ 55.5	$ 53.3	$ 80.6	$ 85.9