How much money did the us spend on the y2k bug?

The U.S. government and private sector collectively spent an estimated $100 billion to $600 billion to address the Y2K bug in the years leading up to January 1, 2000. This extensive investment was aimed at updating computer systems and ensuring that they could properly handle the date change from 1999 to 2000. While the actual impact of the Y2K bug turned out to be minimal, the preparations were significant in scope and scale.