XML 150 R67.htm IDEA: XBRL DOCUMENT
v3.19.3

Goodwill and Other Intangible Assets Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Sep. 30, 2019 | Sep. 30, 2018
Goodwill [Roll Forward] |  |
Goodwill, Beginning Balance | $ 18,381 | $ 18,591
Business Acquisitions | 25 | 15
Business Divestitures | (23) | (35)
Currency Translation and Other | (205) | (190)
Goodwill, Ending Balance | 18,178 | 18,381
Building Solutions North America | Building Technologies & Solutions |  |
Goodwill [Roll Forward] |  |
Goodwill, Beginning Balance | 9,603 | 9,637
Business Acquisitions | 0 | 0
Business Divestitures | 0 | 0
Currency Translation and Other | (15) | (34)
Goodwill, Ending Balance | 9,588 | 9,603
Building Solutions EMEA/LA | Building Technologies & Solutions |  |
Goodwill [Roll Forward] |  |
Goodwill, Beginning Balance | 1,950 | 2,012
Business Acquisitions | 6 | 1
Business Divestitures | (1) | 0
Currency Translation and Other | (106) | (63)
Goodwill, Ending Balance | 1,849 | 1,950
Building Solutions Asia Pacific | Building Technologies & Solutions |  |
Goodwill [Roll Forward] |  |
Goodwill, Beginning Balance | 1,235 | 1,255
Business Acquisitions | 8 | 0
Business Divestitures | 0 | 0
Currency Translation and Other | (49) | (20)
Goodwill, Ending Balance | 1,194 | 1,235
Global Products | Building Technologies & Solutions |  |
Goodwill [Roll Forward] |  |
Goodwill, Beginning Balance | 5,593 | 5,687
Business Acquisitions | 11 | 14
Business Divestitures | (22) | (35)
Currency Translation and Other | (35) | (73)
Goodwill, Ending Balance | $ 5,547 | $ 5,593

X
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99380562&loc=d3e13770-109266 + Details
Name: | us-gaap_Goodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillAcquiredDuringPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillForeignCurrencyTranslationGainLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_GoodwillRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of divestiture of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
Name: | us-gaap_GoodwillWrittenOffRelatedToSaleOfBusinessUnit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=jci_BuildingSolutionsNorthAmericaMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | jci_PrimaryBusinessInformationByPrimaryBusinessAxis=jci_BuildingTechnologiesSolutionsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=jci_BuildingSolutionsEMEALAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=jci_BuildingSolutionsAsiaPacificMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=jci_GlobalProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |