Gwyneth Paltrow, Chris Martin ... Divorce a Done Deal ... Documents Filed Today

Gwyneth Paltrow and Chris Martin have sealed their deal on divorce, and the documents will be filed later Monday ... TMZ has learned.

Sources connected with the couple tell us ... Gwyneth and Chris have been using their business managers to hash out a settlement agreement involving both property and custody.

We're told the agreement has been signed and the divorce is a done deal ... all that's left is for the paperwork to be filed and signed by the judge.

As for the terms of the deal ... we're told it will not be revealed in the divorce docs ... it's all part of a confidential settlement. The couple did ask for joint legal and physical custody of their 2 kids.