Michael and Susan Dell announced Tuesday that they have committed $6.25 billion to fund investment accounts for some 25 million American children.

The couple's donation will be the largest ever devoted to American children, according to Invest America, a nonprofit advocacy group partnered with the Dells.

"It's designed to help families feel supported from the start and encourage them to keep saving as their children grow," Michael Dell , founder and CEO of Dell Technologies , told CNBC in an interview. "We know that when children have accounts like this, they're much more likely to graduate from high school, from college, buy a home, start a business and less likely to be incarcerated."

The Dells' commitment goes hand in hand with a new federal government program that allo

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