Condensed Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Revenues	$ 4,907	$ 4,253	$ 10,223	$ 8,479
Cost of products sold	2,661	2,520	5,244	4,766
Selling and administrative expense	1,148	1,025	2,298	2,146
Research and development expense	317	264	608	535
Acquisitions and other restructurings	52	75	102	161
Other operating expense	296	0	296	0
Total Operating Costs and Expenses	4,473	3,884	8,547	7,607
Operating Income	434	370	1,676	871
Interest expense	(124)	(134)	(242)	(270)
Interest income	2	2	5	3
Other (expense) income, net	(8)	(38)	24	(11)
Income Before Income Taxes	305	200	1,462	594
Income tax provision	6	17	160	134
Net Income	299	183	1,302	461
Preferred stock dividends	(23)	(38)	(45)	(76)
Net income applicable to common shareholders	$ 277	$ 145	$ 1,257	$ 385
Basic Earnings per Share (USD per share)	$ 0.95	$ 0.53	$ 4.32	$ 1.42
Diluted Earnings per Share (USD per share)	0.94	0.53	4.28	1.40
Dividends per Common Share (USD per share)	$ 0.83	$ 0.79	$ 1.66	$ 1.58