DIVESTITURES - Summary of Components of Income from Discontinued Operations, Net of Tax (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2022	Jan. 03, 2021
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Income from discontinued operations, net of tax	$ 38.8	$ 57.2
Income (loss) from discontinued operations, net of tax attributable to noncontrolling interest	0.4	(0.2)
Net income from discontinued operations attributable to controlling interest	38.4	57.4
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	49.3	81.1
Income tax expense from discontinued operations	10.5	23.9
Income from discontinued operations, net of tax	38.8	57.2
Income (loss) from discontinued operations, net of tax attributable to noncontrolling interest	0.4	(0.2)
Net income from discontinued operations attributable to controlling interest	38.4	57.4
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	60.0	94.1
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	(0.3)	(0.3)
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	$ 10.4	$ 12.7