You mean like the US did with AT&T? I'm not sure if they 'have the balls' currently, but they have in the past and it's not inconceivable they would do so again. Microsoft came close to it as well.
I do point out that US vs AT&T did first major anti-trust settlement in 1913, and the breakup ultimately happened in 1984, or about 70 years later. So maybe we'll see Google breakup too in 2084 or around that time..