Insider Trading Arrangements	3 Months Ended	6 Months Ended
	Jun. 30, 2023 shares	Jun. 30, 2023 shares
Trading Arrangements, by Individual
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false
Nancy Huntington Stager [Member]
Trading Arrangements, by Individual
Material Terms of Trading Arrangement		Executive officer Nancy Huntington Stager, President and Chief Executive Officer of Eastern Bank Foundation, adopted a trading arrangement intended to satisfy the affirmative defense conditions of the SEC’s Rule 10b5-1(c) on June 13, 2023. The plan provides for the sale of up to 55,395 shares of Company common stock and continues through January 31, 2024.
Name	Nancy Huntington Stager
Title	President and Chief Executive Officer of Eastern Bank Foundation
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	June 13, 2023
Aggregate Available	55,395	55,395