It's bleedingly obvious that it's illegal to be taxed differently than other companies. Paying back €13bn is nothing.

Companies that "make deals" on tax anywhere in the world should be effectively banned from the EU market. It's pure evil. Or pay 10x of any gain they have made anywhere in the world by "making deals" on tax, thereby undercutting fair competition in a free market.

This is just a drop in the ocean for the total amount of wealth that is protected with these schemes. In the $20 for ¢0.5 picture this probably amounts to ¢50. They're still making off with the other $19.49. Though arbitration would probably round that up.

An acceptable loss.

Though tax avoidance was a corporate strategy and they actually sought these deals it would not have been obvious that this was technically illegal. The Irish Revenue Commissioners told them it was legal as an interpretation of Irish law, which was incorrect.