RETIREMENT PLANS (Details) - Defined Benefit Plans - USD ($) $ in Millions	3 Months Ended
	Jan. 01, 2021	Jan. 03, 2020
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 3.3	$ 2.5
Interest cost	0.5	0.5
Expected return on plan assets	(1.9)	(1.9)
Amortization of prior service cost	(0.4)	(0.2)
Recognized actuarial loss	0.9	1.1
Net periodic benefit cost	$ 2.4	$ 2.0