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Document and Entity Information
Jun. 16, 2020
Document And Entity Information [Line Items]  
Entity Registrant Name BORGWARNER INC
Amendment Flag false
Entity Central Index Key 0000908255
Document Type 8-K
Document Period End Date Jun. 16, 2020
Entity Incorporation State Country Code DE
Entity File Number 1-12162
Entity Tax Identification Number 13-3404508
Entity Address, Address Line One 3850 Hamlin Road
Entity Address, City or Town Auburn Hills
Entity Address, State or Province MI
Entity Address, Postal Zip Code 48326
City Area Code (248)
Local Phone Number 754-9200
Written Communications false
Soliciting Material true
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Common Stock [Member]  
Document And Entity Information [Line Items]  
Security 12b Title Common Stock, par value $0.01 per share
Trading Symbol BWA
Security Exchange Name NYSE
Senior Notes [Member]  
Document And Entity Information [Line Items]  
Security 12b Title 1.80% Senior Notes due 2022
Trading Symbol BWA22
Security Exchange Name NYSE