When ionic compounds dissolve in polar solvents many types of factors come into play determining their solubility. Some of them may be: ion- dipole interactions, lattice energy, high dielectric constant of the solvent etc.
But I was unable to understand what kind of interactions take place between non-polar solvent and non-polar solute. I was reading about the solubility of $\ce{CH4}$ in $\ce{CCl4}$ and since they were both covalently bonded I couldn't explain the interactions. Any references would help too.
So my question is:
What type of interactions occur when $\ce{CH4}$ dissolves in $\ce{CCl4}$