"Blue Cross Blue Shield of Michigan has built and operated an illegal monopoly on health insurance coverage in Michigan," Attorney General Dana Nessel said in a news release.

With per-person pharmacy costs increasing, employers and benefits advisors are looking to integrated clinical management to reduce the total cost of care while supporting whole-person health and protecting workforce productivity.

An Amazon spokesperson confirmed a "small number" of positions were eliminated Thursday, after a year in which the retail giant slashed headcount by 30,000.

Mood and anxiety disorders account for the largest aggregate costs, while substance use disorders carry the highest spending per treated patient.