WASHINGTON, Feb 20 (Reuters) - The U.S. will announce a major package of sanctions against Russia on Friday over the death of opposition leader Alexei Navalny and the two-year Ukraine war, President Joe Biden said on Tuesday. Biden, speaking to reporters as he departed on a trip to California, did not give details but said he would provide more information about the package on Friday. The package will "hold Russia accountable for what happened to Mr. Navalny" and for its actions over the course of the war in Ukraine, White House national security spokesperson John Kirby said, without providing details...