DIVESTITURES - Summary of Components of Income from Discontinued Operations, Net of Tax (Details) - USD ($) $ in Millions	3 Months Ended				6 Months Ended
	Mar. 31, 2024	Dec. 31, 2023	Apr. 02, 2023	Jan. 01, 2023	Mar. 31, 2024	Apr. 02, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations, net of tax	$ 11.0	$ 11.7	$ 21.4	$ 19.5	$ 22.7	$ 40.9
Income from discontinued operations attributable to noncontrolling interest, net of tax	0.0		0.0		0.0	0.2
Income from discontinued operations attributable to controlling interest, net of tax	11.0		21.4		22.7	40.7
Discontinued Operations, Held-for-sale or Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations before income taxes	15.2		40.3		25.5	68.4
Income tax expense from discontinued operations	4.2		18.9		2.8	27.5
Income from discontinued operations, net of tax	11.0		21.4		22.7	40.9
Income from discontinued operations attributable to noncontrolling interest, net of tax	0.0		0.0		0.0	0.2
Income from discontinued operations attributable to controlling interest, net of tax	11.0		21.4		22.7	40.7
Discontinued Operations, Held-for-sale or Disposed of by Sale | HHI
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations before income taxes	15.2		59.5		15.2	104.4
Discontinued Operations, Held-for-sale or Disposed of by Sale | Other
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations before income taxes	0.0		(1.4)		10.3	(2.0)
Discontinued Operations, Held-for-sale or Disposed of by Sale | Corporate Debt
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations before income taxes	$ 0.0		$ 17.8		$ 0.0	$ 34.0