Weighted Average Common Shares (Schedule Of Basic And Diluted Earnings Per Share Reconciliation) (Details) - shares shares in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Weighted Average Number of Shares Outstanding Reconciliation [Abstract]
Basic shares outstanding	642.2	665.7	644.7	679.3
Dilutive shares	3.0	3.2	2.7	3.3
Diluted shares outstanding	645.2	668.9	647.4	682.6