Kellogg Huber Hansen Todd Evans & Figel and Korein Tillery together earned more than $1 billion for helping the National Credit Union Administration pursue many of the world’s largest banks over their roles in the subprime mortgage meltdown, the NCUA said Thursday.

The NCUA finally released the figures on Thursday, breaking down the fees and expenses billed by both firms in a litigation campaign that ultimately won the agency more than $4 billion in recoveries. In all, the NCUA paid $506.3 million to Kellogg Huber and nearly $504.8 million to Korein Tillery for acting as the agency’s outside lawyers in cases stemming from the financial crisis.