Place chicken breasts in bottom of crock pot.
Mix salt, pepper, chili powder and ground cumin together in a small bowl, then sprinkle over chicken breasts.
Add chopped onion, drained canned beans, drained white corn, and green chilies to crockpot.
Next, add chicken stock and beer to the crockpot.
Cover and cook on medium for 5-6 hours or until chicken is done and tender.
Remove cooked chicken from crockpot and shred using 2 forks.
Add shredded chicken back to crockpot.
Finally, add 8 ounces cream cheese and half & half.
Let cook another 20-30 minutes or until cheese has completely melted.