CVS Health Corp. recently reported second quarter results and lowered 2024 full-year guidance, including for earnings and cash flow from operations, that is below our expectations. The company is seeing pressure particularly in its health care benefits segment (Aetna), and announced the head of the business is leaving after less than a year and will be replaced with CVS CEO and President Karen Lynch. We are revising our outlook to negative from stable and affirming all our ratings on CVS, including our 'BBB' issuer credit and issue-level ratings. Our rating on the company's commercial paper remains 'A-2'. The negative outlook reflects that with recent earnings and financial policy guidance, we see elevated risk to our base case and the potential