I overstayed visa waiver program thing, I'm in the USA, now time to go home, will I be imprisoned at the airport or will they let me go home?

I overstayed by 10 years. I was meant to stay only 3 months maximum. Now I got enough money I am ready to leave. I heard how USA authorities are aggressive and can easily kill you. I don't want to be arrested. Will I be arrested at the airport?
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