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Employee Benefit Plans (Summary Of Allocation Of Pension Plan Assets) (Details)
Sep. 30, 2019
Sep. 30, 2018
United States [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Plan Assets, Target Allocation 100.00% 100.00%
Non U.S. Plans [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Plan Assets, Target Allocation 100.00% 100.00%
Equity Securities [Member] | United States [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Plan Assets, Target Allocation 62.00% 63.00%
Fixed Income Securities [Member] | United States [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Plan Assets, Target Allocation 35.00% 33.00%
Fixed Income Securities [Member] | Non U.S. Plans [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Plan Assets, Target Allocation 20.00% 19.00%
Other [Member] | United States [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Plan Assets, Target Allocation 3.00% 4.00%
Other [Member] | Non U.S. Plans [Member]    
Defined Benefit Plan Disclosure [Line Items]    
Plan Assets, Target Allocation 80.00% 81.00%