XML 12 R78.htm IDEA: XBRL DOCUMENT
v3.20.1

Derivative Instruments and Hedging Activities - Location and Fair Values of Derivative Instruments and Hedging Activities (Detail) shares in Millions, $ in Millions | 6 Months Ended |
--- | --- | ---
Mar. 31, 2020 USD ($) T shares | Sep. 30, 2019 USD ($) T
Derivative Instruments [Line Items] |  |
Hedge Percentage For Foreign Exchange Transactional Exposures Minimum | 70.00% |
Hedge Percentage For Foreign Exchange Transactional Exposures Maximum | 90.00% |
Derivative, amount of hedged ordinary shares | shares | 1.4 |
Derivative assets | $ 65 | $ 97
Derivative liabilities | 2,609 | $ 2,568
Equity swap |  |
Derivative Instruments [Line Items] |  |
Derivative, Amount of Hedged Item | $ 60 |
Copper [Member] |  |
Derivative Instruments [Line Items] |  |
Derivative, Nonmonetary Notional Amount | T | 3,719 | 3,561
Aluminum [Member] |  |
Derivative Instruments [Line Items] |  |
Derivative, Nonmonetary Notional Amount | T | 2,921 | 2,967
Other Current Liabilities | Commodity Derivatives |  |
Derivative Instruments [Line Items] |  |
Derivative liabilities |  | $ 1
Liabilities Held for Sale, Current [Member] | Commodity Derivatives |  |
Derivative Instruments [Line Items] |  |
Derivative liabilities | $ 4 |
Designated as Hedging Instrument |  |
Derivative Instruments [Line Items] |  |
Derivative assets | 14 | 16
Derivative liabilities | 2,582 | 2,568
Designated as Hedging Instrument | Other Current Assets | Foreign Currency Exchange Derivatives |  |
Derivative Instruments [Line Items] |  |
Derivative assets | 14 | 16
Designated as Hedging Instrument | Other Noncurrent Assets | Equity swap |  |
Derivative Instruments [Line Items] |  |
Derivative assets | 0 | 0
Designated as Hedging Instrument | Other Current Liabilities | Foreign Currency Exchange Derivatives |  |
Derivative Instruments [Line Items] |  |
Derivative liabilities | 22 | 23
Designated as Hedging Instrument | Other Current Liabilities | Commodity Derivatives |  |
Derivative Instruments [Line Items] |  |
Derivative liabilities | 4 | 1
Designated as Hedging Instrument | Long-term Debt | Foreign Currency Denominated Debt [Member] |  |
Derivative Instruments [Line Items] |  |
Derivative liabilities | 2,556 | 2,544
Not Designated as Hedging Instrument |  |
Derivative Instruments [Line Items] |  |
Derivative assets | 51 | 81
Derivative liabilities | 27 | 0
Not Designated as Hedging Instrument | Other Current Assets | Foreign Currency Exchange Derivatives |  |
Derivative Instruments [Line Items] |  |
Derivative assets | 13 | 19
Not Designated as Hedging Instrument | Other Noncurrent Assets | Equity swap |  |
Derivative Instruments [Line Items] |  |
Derivative assets | 38 | 62
Not Designated as Hedging Instrument | Other Current Liabilities | Foreign Currency Exchange Derivatives |  |
Derivative Instruments [Line Items] |  |
Derivative liabilities | 27 | 0
Not Designated as Hedging Instrument | Other Current Liabilities | Commodity Derivatives |  |
Derivative Instruments [Line Items] |  |
Derivative liabilities | 0 | 0
Not Designated as Hedging Instrument | Long-term Debt | Foreign Currency Denominated Debt [Member] |  |
Derivative Instruments [Line Items] |  |
Derivative liabilities | $ 0 | $ 0

X
- Definition Derivative Instruments [Line Items] + References No definition available. + Details
Name: | jci_DerivativeInstrumentsLineItems
Namespace Prefix: | jci_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Derivative, amount of hedged ordinary shares + References No definition available. + Details
Name: | jci_Derivativeamountofhedgedordinaryshares
Namespace Prefix: | jci_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Hedge percentage for foreign exchange transactional exposures, Maximum. + References No definition available. + Details
Name: | jci_HedgePercentageForForeignExchangeTransactionalExposuresMaximum
Namespace Prefix: | jci_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Hedge percentage for foreign exchange transactional exposures, Minimum. + References No definition available. + Details
Name: | jci_HedgePercentageForForeignExchangeTransactionalExposuresMinimum
Namespace Prefix: | jci_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of hedged item in hedging relationship. Excludes hedged asset or liability. + References No definition available. + Details
Name: | us-gaap_DerivativeAmountOfHedgedItem
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition Fair value, before effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets elected not to be offset. Excludes assets not subject to a master netting arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=118948506&loc=SL51823488-111719 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959 + Details
Name: | us-gaap_DerivativeFairValueOfDerivativeAsset
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Fair value, before effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities elected not to be offset. Excludes liabilities not subject to a master netting arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4D -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=118948506&loc=SL51823488-111719 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4B -Subparagraph (a),(c) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5624163-113959 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 20 -Section 55 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226000-175313 + Details
Name: | us-gaap_DerivativeFairValueOfDerivativeLiability
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Nominal number of units used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 + Details
Name: | us-gaap_DerivativeNonmonetaryNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:decimalItemType
Balance Type: | na
Period Type: | instant

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

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: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherCurrentLiabilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=jci_LiabilitiesHeldforSaleCurrentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherCurrentAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_OtherNoncurrentAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BalanceSheetLocationAxis=us-gaap_LongTermDebtMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |