MMC Benefits Handbook
To cover your domestic partner, you will need to read and agree to the electronic Affidavit of Eligible Family Membership at the time that you register your domestic partnership. Go to Colleague Connect (, click Career & Rewards and select Mercer Marketplace Benefits Enrollment Website under Tools.
The US Retirement Program provides survivor benefits to qualified domestic partners. See "Eligible Survivor" in the Marsh & McLennan Companies Retirement Plan, Benefit Equalization Plan and Supplemental Retirement Plan sections of the Benefits Handbook for specific domestic partner plan details or you can contact the Employee Service Center at +1 866 374 2662, any business day, from 8 a.m. to 8 p.m. Eastern time.