Walgreens Boots Alliance is a holding company. Through its subsidiaries, Co. is engaged in retail and wholesale pharmacy. Co.'s operations are organized into three divisions, which are also its reportable segments: Retail Pharmacy USA; Retail Pharmacy International; and Pharmaceutical Wholesale. The Retail Pharmacy USA division has pharmacy-led health and beauty retail offerings. The Retail Pharmacy International division has pharmacy-led health and beauty retail businesses. The Pharmaceutical Wholesale division, which mainly operates under the Alliance Healthcare brand, supplies medicines, other healthcare products and related services to pharmacies, doctors, health centers and hospitals.