Re: €750,000,000
Or simply license their IP rights from outside of OECD countries.
15% seems to be chosen, because there aren't many countries with lower corporation tax that wouldn't succumb to pressure/attack from OECD countries. So Isle of Man for example, 0% corporation tax, yet they'd fold like paper if put under pressure. Switzerland is 8.5%, but its a tiny landlocked country surrounded by high tax neighbours.
Non-OECD Hong Kong's is 16.5% just higher, so they probably don't fear a flight of capital into any Chinese controlled entity in HK.... short sighted at best. HK could drop corp tax to 10% for non-Chinese businesses and pull in most of that fleeing capital.
I think this is more dumb OECD suicidal crap. These OECD countries stab themselves in the back, then whine about the blood loss.
If they want more tax, they could slap higher rates of tax on luxury goods. Since profits in companies in just a number in a financial report, till its paid out as dividend, or taken as capital gains for spending. And spending is easy to target because it is physical goods and physical goods are easy to tax and easy to seize at the borders. Yacht's costing $100 million? Well now it costs $150 million.