U.S. legislators agreed to a tentative federal spending deal, ahead of the looming Dec. 20 deadline before which Congress and the White House must approve funding, The Wall Street Journal reported.

The deal covers approximately $1.4 trillion in discretionary spending until Sept. 30, 2020, the Journal said, adding that the White House was reviewing the terms by Thursday night.

Text for legislation still needs to be finalized, which may be rolled out Dec. 16.

While President Donald Trump sought $8.6 billion last fiscal year to build a border wall between the U.S. and Mexico, Congress backed $1.38 billion in funds for the barrier.

The deal, if finalized, will see a similar amount for the wall, the Journal reported, citing people familiar with the negotiations.