Business Segments Product Line Information (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Net sales	$ 4,697	$ 3,914	$ 13,289	$ 12,227
Automation Solutions [Member] \| Measurement & Analytical Instrumentation [Member]
Disaggregation of Revenue [Line Items]
Net sales	781	709	2,211	2,280
Automation Solutions [Member] \| Valves, Actuators & Regulators [Member]
Disaggregation of Revenue [Line Items]
Net sales	880	842	2,522	2,609
Automation Solutions [Member] \| Industrial Solutions [Member]
Disaggregation of Revenue [Line Items]
Net sales	593	469	1,656	1,470
Automation Solutions [Member] \| Systems & Software
Disaggregation of Revenue [Line Items]
Net sales	693	569	2,043	1,791
Operating Segments [Member] \| Automation Solutions [Member]
Disaggregation of Revenue [Line Items]
Net sales	$ 2,947	$ 2,589	$ 8,432	$ 8,150

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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+ Details