Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Revenues	$ 19,372	$ 18,870	$ 19,131
Cost of products sold	11,202	10,393	10,500
Selling and administrative expense	4,719	4,709	4,719
Research and development expense	1,237	1,256	1,279
Acquisition-related integration and restructuring expense	313	192	179
Other operating (income) expense, net	(210)	37	203
Total Operating Costs and Expenses	17,261	16,588	16,881
Operating Income	2,111	2,282	2,250
Interest expense	(452)	(398)	(469)
Interest income	49	16	9
Other expense, net	(46)	(117)	(99)
Income from Continuing Operations Before Income Taxes	1,662	1,783	1,692
Income tax provision	132	148	88
Net Income from Continuing Operations	1,530	1,635	1,604
(Loss) Income from Discontinued Operations, Net of Tax	(46)	144	488
Net Income	1,484	1,779	2,092
Preferred stock dividends	(60)	(90)	(90)
Net income applicable to common shareholders	$ 1,424	$ 1,689	$ 2,002
Basic Earnings per Share
Income (Loss) from Continuing Operations, Per Basic Share	$ 5.14	$ 5.42	$ 5.23
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share	(0.16)	0.50	1.69
Earnings Per Share, Basic	4.97	5.93	6.92
Diluted Earnings per Share
Income (Loss) from Continuing Operations, Per Diluted Share	5.10	5.38	5.18
Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share	(0.16)	0.50	1.67
Diluted Earnings per Share (USD per share)	$ 4.94	$ 5.88	$ 6.85