XML 77 R67.htm IDEA: XBRL DOCUMENT
v3.21.1

PRODUCT WARRANTY - Narrative (Details) | 3 Months Ended
--- | ---
Mar. 31, 2021
Minimum |
Guarantor Obligations [Line Items] |
Product warranty term | 1 year
Maximum |
Guarantor Obligations [Line Items] |
Product warranty term | 3 years

X
- Definition Product Warranty Term + References No definition available. + Details
Name: | bwa_ProductWarrantyTerm
Namespace Prefix: | bwa_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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_GuaranteeObligationsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |