Congressional leaders unveiled a government-wide $1.7 trillion spending package early Tuesday that includes another large round of aid to Ukraine, a nearly 10% boost in defense spending and roughly $40 billion to assist communities across the country recovering from drought, hurricanes and other natural disasters.

The bill, which runs for 4,155 pages, includes about $772.5 billion for non-defense discretionary programs and $858 billion in defense funding and would last through the end of the fiscal year in September.

Lawmakers worked to stuff in as many priorities as they could into the sprawling package, likely the last major bill of the current Congress. They are racing to complete passage before a midnight Friday deadline or face the prospect of a partial government shutdown going into the Christmas holiday.

Lawmakers leading the negotiations released the details of the bill shortly before 2 a.m. Tuesday.

The spending package includes about $45 billion in emergency assistance to Ukraine as it battles Russia's invasion, according to Sen. Patrick Leahy, the Democratic chairman of the Senate Appropriations Committee. It would be the biggest American infusion of assistance yet to Ukraine, above even President Joe Biden's $37 billion emergency request, and ensure that funding flows to the war effort for months to come.