Until 1998, petitioner CIGNA Corporation’s pension plan provided a retiring employee with an annuity based on preretirement salary and length of service. Its new plan replaced that annuity with a cash balance based on a defined annual contribution from CIGNA, increased by compound interest. The new plan translated already-earned benefits under the old plan into an opening amount in the cash balance account. Respondents, on behalf of beneficiaries of the CIGNA Pension Plan (also a petitioner), challenged the new plan’s adoption, claiming, as relevant here, that CIGNA’s notice of the changes was improper, particularly because the new plan in certain respects provided them with less generous benefits. The District Court found that CIGNA’s disclosures violated its obligations under §§102(a), 104(b), and 204(h) of the Employee Retirement Income Security Act of 1974 (ERISA). In determining relief, it found that CIGNA’s notice defects had caused the employees “likely harm.” It then reformed the new plan and ordered CIGNA to pay benefits accordingly, finding its authority in ERISA §502(a)(1)(B), which authorizes a plan “participant or beneficiary” to bring a “civil action” to “recover benefits due… under the terms of his plan.” The Second Circuit affirmed.

Held: