Amount of consideration received or receivable for the disposal of assets and liabilities, including discontinued operation.

No definition available.

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- Definition

Amount, before tax, of (gain) loss recognized for the (reversal of write-down) write-down to fair value, less cost to sell, of a disposal group. Excludes discontinued operations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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-Publisher FASB
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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 323
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481687/323-10-50-3

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- Definition

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.

+ References

No definition available.

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Assets and Liabilities Held For Sale and Discontinued Operations - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2023	Sep. 30, 2024	Jul. 31, 2024
Disposal Group, Held-for-sale, Not Discontinued Operations \| Global Products
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal group, not discontinued operation, loss (gain) on write-down	$ 438
Disposal Group, Held-for-sale, Not Discontinued Operations \| Building Solutions Asia Pacific
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal group, not discontinued operation, loss (gain) on write-down	$ 60
Johnson Controls - Hitachi Air Conditioning Holding (UK) Ltd
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Joint venture ownership		60.00%
Johnson Controls - Hitachi Air Conditioning Holding (UK) Ltd \| Hitachi Global Life Solutions, Inc.
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Joint venture ownership		40.00%
Residential and Light Commercial HVAC Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal group, including discontinued operation, consideration			$ 6,700
Residential and Light Commercial HVAC Business \| Johnson Controls International PLC And Hitachi Global Life Solutions, Inc.
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal group, including discontinued operation, consideration			$ 8,100