Legislative aides familiar with the discussions say a handful of congressional leaders have been hashing out the details of the legislation, which would accomplish two goals: repeal section 3 of DOMA as it relates to the federal government's ability to confer some 1,100 federal benefits on same-sex partners; and provide a way for same-sex couples living in states that do not allow them to marry legally to access the same federal benefits afforded to heterosexual spouses.