Consolidated Statements Of Earnings (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Income Statement [Abstract]
Net sales	$ 5,960	$ 5,919	$ 11,513	$ 11,228
Costs and expenses:
Cost of sales	3,587	3,583	6,933	6,837
Selling, general and administrative expenses	1,426	1,359	2,820	2,713
Other deductions, net	59	105	145	195
Interest expense (net of interest income of $3, $5, $7 and $9, respectively)	57	58	111	116
Earnings before income taxes	831	814	1,504	1,367
Income taxes	253	258	460	430
Net earnings	578	556	1,044	937
Less: Noncontrolling interests in earnings of subsidiaries	17	11	29	21
Net earnings common stockholders	$ 561	$ 545	$ 1,015	$ 916
Basic earnings per share common stockholders	$ 0.77	$ 0.74	$ 1.40	$ 1.24
Diluted earnings per share common stockholders	$ 0.77	$ 0.74	$ 1.39	$ 1.24
Cash dividends per common share	$ 0.41	$ 0.40	$ 0.82	$ 0.80