Complex sentence: GEICO has also offered other types of insurance besides auto: homeowner's insurance from 1962 to 1996, a sister company, the Government Employees Life Insurance Company (GELICO), offered life insurance from 1975 to 1985.
Split into simpler sentences: GEICO has also offered other types of insurance besides auto, including homeowner's insurance from 1962 to 1996. A sister company, the Government Employees Life Insurance Company (GELICO), offered life insurance from 1975 to 1985.