Derivatives (Schedule Of Fair Value Of Outstanding Derivative Instruments) (Details) - USD ($) $ in Millions	Dec. 29, 2019	Sep. 30, 2019
Derivatives, Fair Value [Line Items]
Derivative assets	$ 2.6	$ 9.5
Derivative liabilities	2.1	2.3
Commodity Contract [Member] | Other Receivables [Member] | Designated as Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	0.1
Commodity Contract [Member] | Accounts Payable [Member] | Designated as Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities		0.2
Foreign Exchange Contract [Member] | Other Receivables [Member] | Designated as Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	1.1	7.8
Foreign Exchange Contract [Member] | Other Receivables [Member] | Not Designated as Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative assets	1.4	1.2
Foreign Exchange Contract [Member] | Deferred Charges And Other [Member] | Designated as Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative assets		0.5
Foreign Exchange Contract [Member] | Accounts Payable [Member] | Designated as Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	1.5	0.2
Foreign Exchange Contract [Member] | Accounts Payable [Member] | Not Designated as Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	0.1	$ 1.9
Foreign Exchange Contract [Member] | Other Long-term Liabilities [Member] | Designated as Hedging [Member]
Derivatives, Fair Value [Line Items]
Derivative liabilities	$ 0.5