Capitalization And Short-Term Borrowings (Weighted Average Assumptions Used In Estimating Fair Value) (Details)	12 Months Ended
	Sep. 30, 2014 Performance Shares [Member]	Sep. 30, 2013 Stock Appreciation Rights (SARs) [Member]	Sep. 30, 2012 Stock Appreciation Rights (SARs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk Free Interest Rate	0.62%	1.55%	1.59%
Expected Life (Years)		8 years 3 months	8 years 3 months
Remaining Term at Date of Grant (Years)	2 years 9 months 12 days
Expected Volatility	28.30%	25.61%	24.97%
Expected Dividend Yield (Quarterly)		0.69%	0.64%