See content of temporary Table in Oracles' EXPLAIN

I'm executing a Query in Oracle SQL Developer and eventually call

SELECT * FROM TABLE ( dbms_xplan.display );

to get an impression what Oracle just did. There's a column *Name* in the output that states the name of the index that is used in an operation or the name of the table that is being accessed. Every once in a while it says something like *SYS_TEMP_0FD9D6B47_384FBF5*. I'm not sure what of make of it. I guess this is a temporary table created from a WITH clause. How can I see what's the content or the SQL code behind this table?