Fair Value Of Financial Instruments (Narrative) (Details) - Common Stock [Member] - Energizer [Member] $ in Millions	3 Months Ended
Dec. 29, 2019 USD ($)
Fair Value Of Financial Instruments [Line Items]
Unrealized gain on investment	$ 38.5
Dividend income	$ 1.6

Amount of unrealized gain (loss) on investment in marketable security.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(7)(c))
-URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227

Name:	us-gaap_MarketableSecuritiesUnrealizedGainLoss
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration