XML 75 R60.htm IDEA: XBRL DOCUMENT
v3.19.2

Financial Instruments - Derivatives (Details) € in Millions, ₩ in Millions, ¥ in Millions, ¥ in Millions, £ in Millions, kr in Millions, $ in Millions, $ in Millions | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Jun. 30, 2019 KRW (₩) t | Dec. 31, 2018 KRW (₩) t | Jun. 30, 2019 USD ($) | Jun. 30, 2019 JPY (¥) | Jun. 30, 2019 MXN ($) | Jun. 30, 2019 CNY (¥) | Jun. 30, 2019 SEK (kr) | Jun. 30, 2019 EUR (€) | Jun. 30, 2019 GBP (£) | 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 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative, Nonmonetary Notional Amount, Mass | t | 120 | 257 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Brazil, Brazil Real | Foreign currency | Maturity December 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of currency derivatives |  |  | $ 0 |  |  |  |  |  |  | $ 5 |  |  |  |  |  |
Brazil, Brazil Real | Foreign currency | Maturity January 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of currency derivatives | € |  |  |  |  |  |  |  | € 4 |  |  |  |  |  |  | € 4 |
United Kingdom, Pounds | Foreign currency | Maturity March 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of currency derivatives |  |  | 9 |  |  |  |  | 23 |  | 0 |  |  |  |  | 0 |
China, Yuan Renminbi | Foreign currency | Maturity December 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of currency derivatives |  |  | 16 |  |  |  |  |  |  | 0 |  |  |  |  |  |
Euro Member Countries, Euro | Cross Currency Interest Rate Contract [Member] | Maturity September 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of currency derivatives | € |  |  |  |  |  |  |  | 206 |  |  |  |  |  |  |  |
Euro Member Countries, Euro | Foreign currency | Maturity December 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of currency derivatives |  |  | 7 | ¥ 257 |  | ¥ 22 |  |  | £ 9 | 19 | ¥ 0 |  | ¥ 0 |  |  | £ 7
Euro Member Countries, Euro | Foreign currency | Maturity June 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of currency derivatives | kr |  |  |  |  |  |  | kr 540 |  |  |  |  |  |  | kr 540 |  |
Japan, Yen | Cross Currency Interest Rate Contract [Member] | Maturity February 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of currency derivatives | ¥ |  |  |  | 10,978 |  |  |  |  |  |  |  |  |  |  |  |
Japan, Yen | Foreign currency | Maturity December 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of currency derivatives | ₩ 2,773 | ₩ 5,785 | 1 |  |  | ¥ 44 |  |  |  | 3 |  |  | ¥ 89 |  |  |
Korea (South), Won | Foreign currency | Maturity December 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of currency derivatives |  |  | 22 | ¥ 112 |  |  |  | 3 |  | $ 7 | ¥ 266 |  |  |  | 6 |
Sweden, Kronor | Foreign currency | Maturity January 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of currency derivatives | € |  |  |  |  |  |  |  | 30 |  |  |  |  |  |  | 56 |
United States of America, Dollars | Cross Currency Interest Rate Contract [Member] | Maturity September 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of currency derivatives |  |  | 250 |  |  |  |  |  |  |  |  |  |  |  |  |
United States of America, Dollars | Cross Currency Interest Rate Contract [Member] | Maturity February 2023 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of currency derivatives |  |  | $ 100 |  |  |  |  |  |  |  |  |  |  |  |  |
United States of America, Dollars | Foreign currency | Maturity December 2019 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of currency derivatives |  |  |  |  | $ 297 |  |  |  |  |  |  | $ 575 |  |  |  |
United States of America, Dollars | Foreign currency | Maturity January 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Derivative [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Notional amount of currency derivatives | € |  |  |  |  |  |  |  | € 9 |  |  |  |  |  |  | € 0 |

X
- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
Name: | invest_DerivativeNotionalAmount
Namespace Prefix: | invest_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

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
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CommodityContractMember
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: | 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_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: |