Other Deductions, Net (Schedule Of Other Deductions, Net) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Other Deductions, Net [Abstract]
Amortization of intangibles	$ 58	$ 67
Rationalization of operations	23	17
Other	11	(3)
Gains, net	(2)	(3)
Total	$ 90	$ 78