Derivatives (Schedule Of Commodity Swap Contracts Outstanding) (Details) - Brass [Member] - Cash Flow Hedging [Member] $ in Millions	3 Months Ended	12 Months Ended
	Dec. 29, 2019 USD ($) T	Sep. 30, 2019 USD ($) T
Derivative [Line Items]
Notional Amount | T	0.9	0.9
Contract Value | $	$ 4.2	$ 4.4