Before COVID-19 appeared, the projection was for 2.6 Million people to die in the US from Jan. 1 to Nov. 24, 2020.
Many of those 264,000 people classified as COVID-19 deaths would have died in 2020 regardless of any COVID-19 infection. They would have been part of the 2.9 Million who, before COVID-19 appeared, were projected to die in the US for the full year 2020.
The Illinois Director of Public Health explained it:
Dr. Ezike explained that anyone who passes away after testing positive for the virus is included in that category.
"If you were in hospice and had already been given a few weeks to live, and then you also were found to have COVID, that would be counted as a COVID death. It means technically even if you died of a clear alternate cause, but you had COVID at the same time, it's still listed as a COVID death. So, everyone who's listed as a COVID death doesn't mean that that was the cause of the death, but they had COVID at the time of the death." Dr. Ezike outlined.
https://week.com/2020/04/20/idph-director-explains-how-covid-deaths-are-classified/