Redstone, executive chairman of CBS and Viacom, filed for divorce in October, citing "irreconcilable differences" with wife Paula Fortunato Redstone. A judge signed off on the couple's confidential agreement earlier this month and the judgment was entered Wednesday.
The pair had already negotiated a settlement and opted for an uncontested divorce. According to court records, the couple married in April 2003 and have no children.
Redstone, whose wealth was calculated at $7.6 billion in 2007, has been hit hard by the faltering economy. Last year he sold his majority stake in Midway Games and sold $233 million of his CBS Corp. and Viacom Inc. stock as he struggled to restructure $1.6 billion in debt.
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