Answer: Book; Fair
Step-by-step explanation:
Under U.S. GAAP, property, plant, and equipment is reported at book value; under IFRS, property, plant, and equipment is reported at fair value.
An asset's book value is simply equal to the carrying value of the asset on the balance sheet. It should be noted that the book value is calculated when the asset is put against the accumulated depreciation.
The fair value has to do with the estimation of several assets and liabilities which are listed on an organization's books.