Most of the additional spending or lost revenue is financed through those aforementioned medicare cuts (approx. 13.7 billion over the first ten years). The CBO reports that the package as a whole will reduce the deficit by an additional $20 billion over the already-passed Senate package.
We're still waiting for the rest of the language to be released. The package is good news for the Dems; they get to hide behind an increased deficit reduction score while the package comes in under $1 trillion.
A House vote on the plan is expected on Sunday. One of the major sticking points, abortion language, is not thought to be addressed.