The amount of identifiable intangible assets recognized as of the acquisition date.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479303/805-10-55-37

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479907/805-20-50-1

+ Details

Name:	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

- 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 926
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483154/926-20-50-5

+ Details

Name:	us-gaap_FiniteLivedIntangibleAssetsLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_BusinessAcquisitionAxis=bwa_EldorCorporationsElectricHybridSystemsBusinessMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=bwa_DevelopedTechnologyMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_BusinessAcquisitionAxis=bwa_HubeiSurpassSunElectricChargingBusinessMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

ACQUISITIONS - Schedule of Other Intangible Assets Acquired (Details) - USD ($) $ in Millions	Dec. 01, 2023	Mar. 01, 2023
Eldor Corporation’s Electric Hybrid Systems Business
Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value	$ 11
Eldor Corporation’s Electric Hybrid Systems Business \| Developed technology
Finite-Lived Intangible Assets [Line Items]
Estimated Life	6 years
Estimated Fair Value	$ 9
Eldor Corporation’s Electric Hybrid Systems Business \| Customer relationships
Finite-Lived Intangible Assets [Line Items]
Estimated Life	10 years
Estimated Fair Value	$ 2
Hubei Surpass Sun Electric Charging Business
Finite-Lived Intangible Assets [Line Items]
Estimated Fair Value		$ 3
Hubei Surpass Sun Electric Charging Business \| Developed technology
Finite-Lived Intangible Assets [Line Items]
Estimated Life		5 years
Estimated Fair Value		$ 2
Hubei Surpass Sun Electric Charging Business \| Customer relationships
Finite-Lived Intangible Assets [Line Items]
Estimated Life		6 years
Estimated Fair Value		$ 1