They just had to slip this in there. If they were taxed appropriately on the money over seas we would see an additional $10billion. Being the least scummy in a field rife with tax evasion isn't saying much.
Also...
> Apple’s contributions in the US have significantly outpaced the company’s original five-year goal of $350 billion set in 2018
So it's only upping the amount it had already pledged. So they were already doing it anyway