DIVESTITURES - Summary of Components of Income from Discontinued Operations, Net of Tax (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2023	Jan. 01, 2023
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations, net of tax	$ 11.7	$ 19.5
Income from discontinued operations attributable to noncontrolling interest, net of tax	0.0	0.1
Income from discontinued operations attributable to controlling interest, net of tax	11.7	19.4
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	10.3	28.1
Income tax (benefit) expense from discontinued operations	(1.4)	8.6
Income from discontinued operations, net of tax	11.7	19.5
Income from discontinued operations attributable to noncontrolling interest, net of tax	0.0	0.1
Income from discontinued operations attributable to controlling interest, net of tax	11.7	19.4
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	0.0	45.0
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	10.3	(0.6)
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	$ 16.3