Equity Roll Forward (Schedule Of Change In Equity) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 7,568
Beginning balance	7,618
Net earnings	309	$ 349
Noncontrolling interests in earnings	6	4
Net earnings	315	353
Other comprehensive income (loss)	(33)	$ (121)
Cash dividends	(324)
Stock plans	178
Ending balance	7,713
Ending balance	7,754
AOCI Attributable to Parent [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Other comprehensive income (loss)	(31)
Retained Earnings [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividends	(311)
Additional Paid-in Capital [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock plans	178
Noncontrolling Interest [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	50
Other comprehensive income (loss)	(2)
Cash dividends	(13)
Stock plans	0
Ending balance	$ 41