Place chicken breasts at the bottom of the crock pot.
Drain black beans and white beans and add them to the crock pot.
Add the undrained can of corn and Rotel to the crock pot.
Sprinkle the ranch seasoning, cumin, chili powder, and onion powder evenly over the ingredients.
Pour the can of water over everything.
Cover and cook on low for 6 hours.
About 30 minutes before serving, add the cream cheese and stir until melted and creamy.
Shred the chicken with two forks to your desired consistency.
Stir everything well and cook for an additional 10-15 minutes uncovered.
Serve hot and enjoy your easy and delicious white chicken chili.