GOODWILL AND INTANGIBLE ASSETS - Schedule of Carrying Value and Accumulated Amortization for Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 30, 2025	Mar. 31, 2024	Mar. 30, 2025	Mar. 31, 2024	Sep. 30, 2024
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 740.8		$ 740.8		$ 745.0
Accumulated Amortization	(522.1)		(522.1)		(504.2)
Net	218.7		218.7		240.8
Total intangible assets, Gross Carrying Amount	1,467.3		1,467.3		1,494.6
Total intangible assets, Net	945.2		945.2		990.4
Amortization expense	10.5	$ 11.1	21.0	$ 22.2
Impairment of intangible assets	15.7	$ 39.0	15.7	$ 43.0
Tradenames
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived intangible assets	726.5		726.5		749.6
Impairment of intangible assets	15.7
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	637.6		637.6		641.8
Accumulated Amortization	(466.8)		(466.8)		(452.3)
Net	170.8		170.8		189.5
Technology assets
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	75.3		75.3		75.3
Accumulated Amortization	(43.5)		(43.5)		(41.0)
Net	31.8		31.8		34.3
Tradenames
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	27.9		27.9		27.9
Accumulated Amortization	(11.8)		(11.8)		(10.9)
Net	$ 16.1		$ 16.1		$ 17.0