CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS (Parenthetical) - USD ($) $ in Millions		3 Months Ended
		Jan. 01, 2021	Jan. 03, 2020
Statement of Comprehensive Income [Abstract]
Tax benefit from amortization of prior service cost included in net periodic benefit cost	[1]	$ 0.1	$ 0.0
Tax expense from amortization of net actuarial loss included in net periodic benefit cost		(0.1)	(0.2)
Tax benefit on change in unrealized gain (loss) on derivative instruments		1.5	0.0	[1]
Tax (expense) benefit on reclassification adjustments on derivative instruments		$ (0.1)	$ 0.2

[1] Tax expense or benefit related to the periods presented are not material.