The seven men and one woman bought the winning Powerball ticket at a convenience store near the ConAgra ham processing plant where they worked. At least three of the winners are immigrants, two from Vietnam and one from the Congo.
"This is great country!" said Quang Dao, 56, who came to the United States in 1988. He still has family in Vietnam and said he plans to help them financially with his winnings.
The previous U.S. jackpot record was $363 million, won by two ticketholders in Illinois and Michigan in 2000.
The entire group spent several days hiding from the media. They needed time to contact an attorney and to work out their future plans, reports CBS News correspondent Jennifer Miller.
The Nebraska workers had the option of taking the money in one lump sum or 30 annual installments. They chose the lump sum and will get $15.5 million each after taxes.
Even before the winners were announced officially, it was "all everyone's been talking about at the plant," CBS News correspondent Bianca Solorzano reports. Some of the winners haven't been back to work since the drawing, Solorzano points out.