v3.24.1.u1
Document and Entity Information
Apr. 23, 2024
Cover [Abstract]  
Amendment Flag false
Entity Central Index Key 0001634997
Document Type 8-K
Document Period End Date Apr. 23, 2024
Entity Registrant Name Avangrid, Inc.
Entity Incorporation State Country Code NY
Entity File Number 001-37660
Entity Tax Identification Number 14-1798693
Entity Address, Address Line One 180 Marsh Hill Road
Entity Address, City or Town Orange
Entity Address, State or Province CT
Entity Address, Postal Zip Code 06477
City Area Code (207)
Local Phone Number 629-1190
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock
Trading Symbol AGR
Security Exchange Name NYSE
Entity Emerging Growth Company false