Pros
Cargill is a very large, stable, well diversified company. There are a lot of opportunities for advancement and you can redirect your career without leaving the company. Their benefits are very good, some of the best in the industry. This is a company with very high integrity and they live out their values, not just talk about them.
Cons
There's a lot of bureaucracy and corporate red tape. The organization moves painfully slowly. All the resources in the world are completely useless if you can't move quickly enough to take advantage of opportunities. Compensation in most cases is below average. Senior leadership, a traditional strength of the company, has gotten worse in recent years. In general, corporate culture is a strength but it varies widely by location and business unit with some very unhealthy corporate cultures allowed to continue in some locations.