XML 139 R119.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Income Taxes Uncertain Tax Position, Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2017 | Sep. 30, 2015 | Sep. 30, 2017 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2014
Income Tax Disclosure [Abstract] |  |  |  |  |  |
Income Tax Examination, estimate of impact |  |  | $ 25 |  |  |
Unrecognized Tax Benefits, Decrease Resulting from Settlements with Taxing Authorities |  |  |  | $ 440 |  |
Unrecognized Tax Benefits, Decrease (Increase) Resulting from Tax Audit Resolution | $ 191 | $ 99 |  |  |  |
Unrecognized Tax Benefits | 2,173 | 1,052 | 2,173 | 1,052 | $ 1,706 | $ 1,493
Amount of unrecognized tax benefits which may impact effective tax rate | 2,047 | 997 | 2,047 | 997 | 1,604 |
Total net accrued interest, net of tax benefit | $ 99 | $ 33 | $ 99 | $ 33 | $ 84 |

X
- Definition Income Tax Examination, estimate of impact + References No definition available. + Details
Name: | jci_IncomeTaxExaminationestimateofimpact
Namespace Prefix: | jci_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Payments for Tax Settlements + References No definition available. + Details
Name: | jci_PaymentsforTaxSettlements
Namespace Prefix: | jci_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of increase (decrease) in unrecognized tax benefits resulting from tax audit resolutions. + References No definition available. + Details
Name: | jci_UnrecognizedTaxBenefitsDecreaseResultingfromTaxAuditResolution
Namespace Prefix: | jci_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_IncomeTaxDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of unrecognized tax benefits. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=65882285&loc=SL6600010-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Unrecognized Tax Benefit -URI http://asc.fasb.org/extlink&oid=6527854 + Details
Name: | us-gaap_UnrecognizedTaxBenefits
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of interest expense accrued for an underpayment of income taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32718-109319 + Details
Name: | us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=65882285&loc=SL6600010-109319 + Details
Name: | us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant