Complex sentence: In 1981, Citicorp would also acquire the Diners Club card and brand, and by the mid- 1990s the Carte Blanche brand was slowly starting to be phased out in favor of Diners Club.
Split into simpler sentences: In 1981, Citicorp would also acquire the Diners Club card and brand. By the mid- 1990s the Carte Blanche brand was slowly starting to be phased out in favor of Diners Club.