Pension Plans (Accounting For The Pension Plans) (Details) - Foreign Plan [Member] - Pension Plan [Member]	12 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016
Defined Benefit Plan Disclosure [Line Items]
Weighted average assumptions used to determine benefit obligations at September 30 measurement date, Discount rate	1.86%	1.81%	1.30%
Weighted average assumptions used to determine benefit obligations at September 30 measurement date, Rate of increase in future compensation	3.00%	2.80%	2.80%
Weighted average assumptions used to determine net periodic pension cost for fiscal years ended September 30, Discount rate	1.81%	1.26%	2.20%
Weighted average assumptions used to determine net periodic pension costs for fiscals years ended September 30, Rate of increase of future compensation	2.80%	2.80%	3.00%
Weighted average assumptions used to determine net periodic pension cost for fiscal years ended September 30, Rate of return on plan assets	5.44%	5.44%	5.73%