Share Based Compensation (Summary Of Share Based Compensation Expense) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Mar. 29, 2020	Mar. 31, 2019	Mar. 29, 2020	Mar. 31, 2019
Share based compensation	$ 13.1	$ 15.9	$ 26.0	$ 21.8
SB/RH [Member]
Share based compensation	$ 12.6	$ 15.5	$ 25.4	$ 21.1

Amount of noncash expense for share-based payment arrangement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration