European financial stability officials are debating whether to create an alternative to Federal Reserve funding backstops by pooling dollars held by non-U.S. central banks in a bid to reduce their reliance on the U.S. under the Trump administration, five officials familiar with the matter said. The talks, reported here for the first time, are a reaction to policies under U.S. President Donald Trump that have upended long-standing ties, put the Fed's independence in doubt and underlined the dominant role the U.S. plays in global finance.