Golden Valley-based General Mills Inc. is buying control of Minneapolis-based Pillsbury in a 10.5 billion dollar stock-for-stock deal that would create one of the world's largest food companies. General Mills will issue 141 million new shares of common stock to Diageo, Pillsbury's London-based parent company, in exchange for control of Pillsbury. The combination would nearly double the size of General Mills to about $13 billion in annual sales. Daniel Peris is an analyst with Argus Research.