XML 100 R80.htm IDEA: XBRL DOCUMENT
v3.23.3

Derivative Instruments and Hedging Activities - Outstanding Commodity Hedge Contracts (Details) - T | 12 Months Ended
--- | ---
Sep. 30, 2023 | Sep. 30, 2022
Copper |  |
Derivative [Line Items] |  |
Volume Outstanding | 2,812 | 3,629
Aluminum |  |
Derivative [Line Items] |  |
Volume Outstanding | 5,976 | 6,758

X
- 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 Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 815 -SubTopic 40 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480237/815-40-50-5 + Details
Name: | us-gaap_DerivativeLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Nominal mass used to calculate payments on a derivative instrument. + References No definition available. + Details
Name: | us-gaap_DerivativeNonmonetaryNotionalAmountMass
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:massItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=jci_CopperMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=jci_AluminumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |