“I initiated it,” he said in an interview with CNBC. “I am not doing anything that he does not approve of. He is not doing anything I dont approve of. We talk all the time, but he is the decider,” the 95-year-old Berkshire Chairman added, referring to his CEO successor, Ger Abel.

Warren Buffett said he was the driving force behind the conglomerate's recent big investment in Alphabet.

Berkshire Hathaway is a recent investor in Alphabet stock. Here's what Warren Buffett has to say on buying Alphabet stocks and regretting not buying it earlier.