Striking news today: CVS, the huge pharmacy chain, says it will stop selling cigarettes, a $2 billon item for the company, in October.

Reason is more or less this: Should a doctor’s office sell cigarettes?

The company’s move was yet another sign of its metamorphosis into becoming more of a health care provider than a largely retail business, with its stores offering more miniclinics and health advice to aid customers visiting its pharmacies.

Imagine if Walmart, also moving into health services in many ways, made a similar decision.