A White House spokesman has said that Nippon Steel's $15 billion bid for U.S. Steel has been referred to U.S. President Joe Biden, giving the president 15 days to decide on a tie up he has previously said he opposes. In another development, News Corp has agreed to sell its Australian cable-TV unit Foxtel to British-owned sports network DA ZONE for $2.1 billion including debt, cutting the Murdoch-controlled media empire's exposure to a business upended by streaming platforms. Watch NDTV'S The World Report for the latest updates.