Opus is right. If the 1099-R was in reference to your home sale, this is a mistake, and you should contact the name of the Payer and ask them to correct it (otherwise the IRS will think that you got a retirement plan, pension, or IRA distribution that you failed to declare as income).
For the sake of others reading this post, the 1099-S is not always issued for home sales, but if it is, as Opus says, you have to put it on your return.
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