Basis Of Presentation And Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Millions	6 Months Ended
	Mar. 29, 2020	Oct. 01, 2019
Significant Accounting Policies [Line Items]
Right-of-use lease assets	$ 93.6
Lease liabilities	$ 99.3
Average discount rate	4.57%
Accounting Standards Update 2016-02 [Member]
Significant Accounting Policies [Line Items]
Right-of-use lease assets		$ 107.5
Lease liabilities		$ 113.0
Average discount rate		4.60%
Deferred tax assets and tax liabilities		$ 29.7
Accounting Standards Update 2018-02 [Member]
Significant Accounting Policies [Line Items]
Reclassification from AOCI to retained earnings	$ 0.3
SB/RH [Member]
Significant Accounting Policies [Line Items]
Right-of-use lease assets	$ 93.6