Pension Plans (Percentage Of Total Plan Assets) (Details) - Foreign Plan [Member] - Pension Plan [Member]	Sep. 30, 2017	Sep. 30, 2016
Defined Benefit Plan Disclosure [Line Items]
Asset Category	100.00%	100.00%
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset Category	23.00%	49.00%
Fixed Income Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset Category	57.00%	30.00%
Commodity Option [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset Category	6.00%	4.00%
Insurance Company [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset Category	12.00%	16.00%
Cash [Member]
Defined Benefit Plan Disclosure [Line Items]
Asset Category	2.00%	1.00%