This plan is much bigger than 700 billion, it's infinite. It's an authorization to buy 700 billion at a time and hold only that 700 billion in debt.
Section 115. Graduated Authorization to purchase.
A(3) If, at any time after the certification in paragraph (2) has been made, the President transmits to the Congress a written report detailing the plan of the Secretary to exercise the authority under this paragraph, unless there is enacted, within 15 calendar days of such transmission, a joint resolution described in subsection (c), effive upon the expiration of such 15-day period, such authority shall be limited to $700,000,000,000 outstanding at one time.