Leidos Holdings, Inc. is a holding company, which operates through its subsidiary, Leidos, Inc. It develops smarter technology solutions, particularly for customers in highly regulated industries. Its segments include National Security and Digital, Health & Civil, Commercial & International and Defense Systems. Its National Security and Digital segment provides technology-enabled services and mission software capabilities for defense and intelligence customers in the areas of cyber, logistics, security operations and decision analytics, as well as IT operations and digital transformation programs across all U.S. federal government customers. Its Health & Civil segment provides services and solutions to federal and commercial customers in the areas of public health, care coordination, life and environmental sciences and transportation. Its Commercial & International segment provides technologically advanced services, solutions and products to commercial and international customers.