Consolidated Statements Of Earnings (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2012	Mar. 31, 2011	Mar. 31, 2012	Mar. 31, 2011
Income Statement [Abstract]
Net sales	$ 5,919	$ 5,854	$ 11,228	$ 11,389
Costs and expenses:
Cost of sales	3,583	3,548	6,837	6,920
Selling, general and administrative expenses	1,359	1,315	2,713	2,626
Other deductions, net	105	101	195	179
Interest expense (net of interest income of $5, $6, $9, and $11, respectively)	58	57	116	118
Earnings before income taxes	814	833	1,367	1,546
Income taxes	258	266	430	488
Net earnings	556	567	937	1,058
Less: Noncontrolling interests in earnings of subsidiaries	11	11	21	22
Net earnings common stockholders	$ 545	$ 556	$ 916	$ 1,036
Basic earnings per share common stockholders	$ 0.74	$ 0.74	$ 1.24	$ 1.37
Diluted earnings per share common stockholders	$ 0.74	$ 0.73	$ 1.24	$ 1.36
Cash dividends per common share	$ 0.40	$ 0.35	$ 0.80	$ 0.69