Walgreens Boots Alliance is a holding company. Through its subsidiaries, Co. is engaged in retail pharmacy. Co.'s reportable segments are: U.S. Retail Pharmacy, International, and U.S. Healthcare. Co.'s U.S. Retail Pharmacy segment includes the Walgreens business which is comprised of the operations of retail drugstores, health and wellness services, specialty and home delivery pharmacy services, and its equity method investment in AmerisourceBergen Corporation. The International segment consists of pharmacy-led health and beauty retail businesses outside the U.S. and the pharmaceutical wholesaling and distribution business in Germany. Co.'s U.S. Healthcare segment is a healthcare business.