Reportedly between $21 and $25 million
http://espn.go.com/mlb/story/_/id/67...-year-contract
I don't think it matters now, but for those wondering, the contract only contains a limited no-trade clause of 8 restricted teams he would have to approve.
In other words, unless the Reds are on that list of eight, they theoretically could still acquire him. That obviously seems highly unlikely for a number of reasons.