v3.25.1
Document
May 14, 2025
Cover Document [Abstract]  
Amendment Flag false
Document Type 8-K
Document Period End Date May 14, 2025
Entity Registrant Name FEDERAL HOME LOAN BANK OF BOSTON
Entity Central Index Key 0001331463
Entity File Number 000-51402
Entity Tax Identification Number 04-6002575
Entity Address, Address Line One 800 Boylston Street
Entity Address, City or Town Boston,
Entity Address, State or Province MA
Entity Address, Postal Zip Code 02199
City Area Code (617)
Local Phone Number 292-9600
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Entity Incorporation, State or Country Code X1