CVS results top estimates even as high medical costs drag down insurance unit

1. CVS exceeded Q4 profit expectations despite rising insurance costs. 2. CEO David Joyner is implementing a $2 billion cost-cutting plan. 3. CVS's insurance revenue jumped 23% but showed an operating loss. 4. Pharmacy division sales rose 7%, driven by higher prescription volumes. 5. Concerns persist over rising medical costs and Medicare Advantage profitability.