President Donald Trump shows samples of the proposed new tax form at the White House in Washington, DC, on November 2, 2017.

It's being billed as a $1.5 trillion package. But when you add it all up, the changes in the proposed tax overhaul bill set for a vote this week in Congress would create more than $5 trillion worth of tax winners and losers.

Most of the original plan, months in the making but unveiled just weeks ago, has apparently survived intact. And despite some last minute arm-twisting and deal-making, the bill appears to have the votes in both the House and Senate to win approval.

Under the latest outline released Friday night, corporations would enjoy a big drop in the tax rate on their profits, but would give up dozens of deductions, exemptions and exclusions that lower their tax bill. Individuals would also see their tax rates lowered, but would give up some important tax breaks that benefit those at the bottom of the income ladder more than those higher up.

The changes won't go into effect until next year, so you won't really know for sure how much you'll save (or owe in new taxes) until the detailed rules are written and you prepare next year's tax return in early 2019. Even the Congressional tax wonks, tasked with forecasting the dollar impact of the bill's dozens of provision, warned in their spreadsheet that their estimates are "very preliminary."

But the broad outlines of the final bill are coming into focus. For individual taxpayers, the biggest savings would come from lower tax rates (worth $1.2 billion over 10 years), a doubling of the standard deduction (another $720 billion over 10 years), the phaseout of the alternative minimum tax (worth $637 billion in savings) and a bigger child tax credit ($573 billion).

In return for those tax breaks, individuals would give up personal exemptions (currently worth $1.2 billion in tax savings) along with popular deductions (worth $668 billion in savings.)