(Reuters) - Bermuda is not to blame for companies such as Google using Bermudan subsidiaries to shelter billions of dollars from U.S. and European tax authorities, the territory's finance minister said on Monday. Google has come under fire from British lawmakers for channelling billions of dollars a year through an Irish subsidiary to a Dutch sister company which then passes the money to another affiliate in Bermuda. The use of such complex structures is common among multinationals, including Apple and Amazon, and has become a hot political topic on both sides of the Atlantic.