This year, I get the 23rd AND the 26th off. I'm not sure why, other than the big wigs decided to be nice to us.
In every salaried job I've been at, if a regular holiday falls on a weekend, we get a week day off.
To make things even more confusing, if a holiday falls on a Tuesday or a Thursday, I've had work places give the Monday or Friday off, just to make a nice four day weekend.
My husband is one of the lucky ones - his workplace just closes between Christmas and New Years, and everyone still gets paid.