XML 127 R109.htm IDEA: XBRL DOCUMENT v3.21.2

Segment Information (Details)	12 Months Ended
	Sep. 30, 2021 Segment Person	Sep. 30, 2020 Person	Sep. 30, 2019 Person
Segment Reporting Information [Line Items]
Number of reportable segments | Segment	4
Percentage of individual customer sales to consolidated net sales threshold for disclosure as major customer	10.00%	10.00%	10.00%
Number of customers that individually accounted for 10 % or more of consolidated net sales | Person	0	0	0

X

- Definition

Number of customers that individually accounted for 10% or more of consolidated net sales.

+ References

No definition available.

+ Details

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X

- Definition

Percentage of individual customer sales to consolidated net sales, threshold for disclosure as major customer.

+ References

No definition available.

+ Details

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Namespace Prefix:	jci_
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X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 18
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8672-108599

+ Details

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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

No definition available.

+ Details

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