MOSCOW, March 10 (Reuters) - Russian miner Norilsk Nickel said on Wednesday that it had paid $2 billion to Russia for the environmental damage caused by a huge fuel spill last year in the country's worst Arctic environmental disaster.

The size of the penalty, unprecedented in Russia, follows a leak last May of 21,000 tonnes of diesel into rivers and subsoil near Norilsk in Siberia which infuriated Russian President Vladimir Putin.

($1 = 74.0050 roubles) (Reporting by Polina Devitt; editing by Jason Neely)