Income Taxes (Schedule Of Reconciliations Of The U.S. Federal Statutory Tax Rate) (Details)	12 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015
Income Tax Disclosure [Abstract]
Federal statutory rate	35.00%	35.00%	35.00%
State and local taxes, net of federal tax benefit	1.20%	0.50%	0.70%
Non-U.S. rate differential	(3.60%)	(2.90%)	(2.40%)
Non-U.S. tax holidays	(1.00%)	(1.10%)	(0.90%)
U.S. manufacturing deduction	(1.70%)	(1.80%)	(1.20%)
Gains on divestitures	0.00%	0.00%	1.80%
Non-U.S. subsidiary restructuring	(1.80%)	0.00%	0.00%
Other	0.20%	0.40%	0.30%
Effective income tax rate	28.30%	30.10%	33.30%
Non-U.S. tax holiday tax rate reductions for certain foreign jurisdictions, expiration period in years	5 years