OTHER OPERATING (INCOME) EXPENSE, NET - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Other Income and Expenses [Abstract]
Merger, acquisition and divestiture expense	$ 23	$ 13

Transaction related expenses including merger, acquisition and divestiture

No definition available.

Name:	bwa_MergerAcquisitionAndDivestitureExpense
Namespace Prefix:	bwa_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration