(Corrects paragraph 24 to reflect sanctions on elites will begin on Tuesday, not Wednesday, after White House issued corrected transcript) By Karin Strohecker (Reuters) -The United States and its allies are coordinating new sanctions on Russia after Moscow recognised two regions in eastern Ukraine as independent, officials said. Details have started to emerge on the steps taken or planned by the United States, European Union, Britain and other Western powers. Below are details on the curbs proposed so far and what other sanctions could target Russia: BANKS & FINANCIAL FIRMS Britain announced s…