XML 38 R61.htm IDEA: XBRL DOCUMENT
v3.19.3

Financial Instruments - Derivatives (Details) € in Millions, ₩ in Millions, ¥ in Millions, ¥ in Millions, £ in Millions, zł in Millions, kr in Millions, $ in Millions, $ in Millions | 9 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2019 PLN (zł) t | Dec. 31, 2018 PLN (zł) t | Sep. 30, 2019 KRW (₩) | Sep. 30, 2019 USD ($) | Sep. 30, 2019 JPY (¥) | Sep. 30, 2019 MXN ($) | Sep. 30, 2019 CNY (¥) | Sep. 30, 2019 SEK (kr) | Sep. 30, 2019 EUR (€) | Sep. 30, 2019 GBP (£) | Dec. 31, 2018 KRW (₩) | Dec. 31, 2018 USD ($) | Dec. 31, 2018 JPY (¥) | Dec. 31, 2018 MXN ($) | Dec. 31, 2018 CNY (¥) | Dec. 31, 2018 SEK (kr) | Dec. 31, 2018 EUR (€) | Dec. 31, 2018 GBP (£)
Commodity contracts | Maturity December 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Nonmonetary Notional Amount, Mass | t | 261 | 257 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Brazil, Brazil Real | Foreign currency | Maturity December 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  | $ 2 |  |  |  |  |  |  |  | $ 5 |  |  |  |  |  |
Brazil, Brazil Real | Foreign currency | Maturity January 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | € |  |  |  |  |  |  |  |  | € 2 |  |  |  |  |  |  |  | € 4 |
United Kingdom, Pounds | Foreign currency | Maturity March 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  | 6 |  |  |  |  | 17 |  |  | 0 |  |  |  |  | 0 |
China, Yuan Renminbi | Foreign currency | Maturity December 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  | 10 |  |  |  |  |  |  |  | 0 |  |  |  |  |  |
Euro Member Countries, Euro | Cross Currency Interest Rate Contract [Member] | Maturity September 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | € |  |  |  |  |  |  |  |  | 206 |  |  |  |  |  |  |  |  |
Euro Member Countries, Euro | Foreign currency | Maturity December 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | zł 7.0 | zł 0.0 |  |  | ¥ 131 |  | ¥ 11 |  |  | £ 1 |  |  | ¥ 0 |  | ¥ 0 |  |  | £ 7
Euro Member Countries, Euro | Foreign currency | Maturity June 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | kr |  |  |  |  |  |  |  | kr 540 |  |  |  |  |  |  |  | kr 540 |  |
Euro Member Countries, Euro | Foreign currency | Maturity December 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  | 9 |  |  |  |  |  |  |  | 19 |  |  |  |  |  |
Japan, Yen | Cross Currency Interest Rate Contract [Member] | Maturity February 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | ¥ |  |  |  |  | 10,978 |  |  |  |  |  |  |  |  |  |  |  |  |
Japan, Yen | Foreign currency | Maturity December 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  | ₩ 1,359.0 | 1 |  |  | ¥ 23 |  |  |  | ₩ 5,785.0 | 3 |  |  | ¥ 89 |  |  |
Korea (South), Won | Foreign currency | Maturity December 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  | 7 | 54 |  |  |  | 2 |  |  | $ 7 | 266 |  |  |  | 6 |
Sweden, Kronor | Foreign currency | Maturity January 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | € |  |  |  |  |  |  |  |  | 17 |  |  |  |  |  |  |  | 56 |
United States of America, Dollars | Cross Currency Interest Rate Contract [Member] | Maturity September 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  | 250 |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States of America, Dollars | Cross Currency Interest Rate Contract [Member] | Maturity February 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  |  | $ 100 |  |  |  |  |  |  |  |  |  |  |  |  |  |
United States of America, Dollars | Foreign currency | Maturity December 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount |  |  | ₩ 36,721.0 |  | ¥ 1,900 | $ 153 |  |  |  |  | ₩ 0.0 |  | ¥ 0 | $ 575 |  |  |  |
United States of America, Dollars | Foreign currency | Maturity January 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Notional Amount | € |  |  |  |  |  |  |  |  | € 14 |  |  |  |  |  |  |  | € 0 |

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
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: | num:massItemType
Balance Type: | na
Period Type: | duration

X
- Definition Nominal or face amount 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_DerivativeNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

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

X
- Details
Name: | bwa_ScheduleOfMaturityPeriodAxis=bwa_MaturityOfDerivativesPeriodTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_BRL
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: | bwa_ScheduleOfMaturityPeriodAxis=bwa_MaturityOfDerivativesPeriodOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bwa_ScheduleOfMaturityPeriodAxis=bwa_MaturityOfDerivativesPeriodThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_GBP
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bwa_ScheduleOfMaturityPeriodAxis=bwa_MaturityOfDerivativesPeriodFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_CNY
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_EUR
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | bwa_ScheduleOfMaturityPeriodAxis=bwa_MaturityofDerivativesPeriod7Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bwa_ScheduleOfMaturityPeriodAxis=bwa_MaturityOfDerivativesPeriodFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_JPY
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | bwa_ScheduleOfMaturityPeriodAxis=bwa_MaturityofDerivativesPeriod6Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_KRW
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_SEK
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_USD
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |