Business Segment Information (Details) - USD ($) $ in Millions	3 Months Ended
Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Net sales	$ 4,713	$ 5,587
Earnings before income taxes	503	765
Eliminations/Interest	(46)	(46)
Increase (decrease) in incentive stock compensation expense	21
Separation costs related to planned strategic repositioning actions	24
Operating Segments [Member]
Segment Reporting Information [Line Items]
Net sales	4,844	5,750
Earnings before income taxes	644	864
Operating Segments [Member] \| Process Management [Member]
Segment Reporting Information [Line Items]
Net sales	1,806	2,099
Earnings before income taxes	271	392
Operating Segments [Member] \| Industrial Automation [Member]
Segment Reporting Information [Line Items]
Net sales	808	1,152
Earnings before income taxes	95	164
Operating Segments [Member] \| Network Power [Member]
Segment Reporting Information [Line Items]
Net sales	1,051	1,119
Earnings before income taxes	84	79
Operating Segments [Member] \| Climate Technologies [Member]
Segment Reporting Information [Line Items]
Net sales	787	900
Earnings before income taxes	109	126
Operating Segments [Member] \| Commercial & Residential Solutions [Member]
Segment Reporting Information [Line Items]
Net sales	392	480
Earnings before income taxes	85	103
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Differences in accounting methods	55	58
Corporate and other	(150)	(111)
Eliminations/Interest	(46)	(46)
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Net sales	(131)	(163)
Intersegment Eliminations [Member] \| Industrial Automation [Member]
Segment Reporting Information [Line Items]
Net sales	$ (116)	$ (145)

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Differences in accounting methods

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Increase (decrease) in incentive stock compensation expense.

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- Definition

This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 940
-SubTopic 20
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=51673353&loc=d3e41242-110953

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
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-Section S99
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-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
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-Paragraph 10
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The net amount of nonoperating interest income (expense).

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- Definition

Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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