Answer:
LIFO reserve
Explanation:
US GAAP standards allow companies to choose between first-in, first-out (FIFO) and last-in, first-out (LIFO) methods, but when reporting LIFO values, the companies must include the LIFO reserve.
The LIFO reserve is an account (although is not included in the balance sheet) that shows the difference between valuation methods.
International Financial Reporting Standards (IFRS) only allow FIFO inventory valuation method.