7 Floors above, 3 below at time of opening.
3rd below was gone (soon to become level zero/urban eatery) by the time I have a real memory of the place.
When Sears took over they shrunk it to 5 above, 1 below, initially; if memory servers.
Subsequently shrinking it more.
Nordstrom is not only down to 3 levels, all above, it occupies maybe 1/2 the footprint of the former store on those floors.
This store was over 1,000,000 sq ft when it opened (as Eatons). Today its only , 220,000 sq ft or about 20% of the size of the original store.