When is a multi-million dollar settlement check taxable?

Ex-wife first rejects, then accepts a $975 million dollar settlement check from ex-husband.  She receives the check in 2014, but cashes the check in 2015.  What tax year does she pay (a lot of) taxes on the amount?

According to Forbes "But from the recipient's side, a check is income when you receive it or when it is available to you, even if you don't cash it then.  It's called constructive receipt, and it trips up many people on their taxes."   

Click here for the entire Forbes Article.