Consolidated Statements of Income - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2017
Income Statement [Abstract]
Revenues	$ 17,290	$ 15,983	$ 12,093
Cost of products sold	9,002	8,714	6,128
Selling and administrative expense	4,332	4,016	2,909
Research and development expense	1,062	1,004	770
Acquisitions and other restructurings	480	740	354
Other operating expense, net	654	0	410
Total Operating Costs and Expenses	15,530	14,474	10,571
Operating Income	1,760	1,509	1,522
Interest expense	(639)	(706)	(521)
Interest income	12	65	76
Other income (expense), net	43	305	(101)
Income Before Income Taxes	1,176	1,173	976
Income tax (benefit) provision	(57)	862	(124)
Net Income	1,233	311	1,100
Preferred stock dividends	(152)	(152)	(70)
Net income applicable to common shareholders	$ 1,082	$ 159	$ 1,030
Basic Earnings per Share
Basic Earnings per Share (USD per share)	$ 4.01	$ 0.62	$ 4.70
Diluted Earnings per Share
Diluted Earnings per Share (USD per share)	$ 3.94	$ 0.60	$ 4.60