cash flows, we then calculate the impairment as the excess of the carrying value of the asset over our estimate of its fair market value. Any impairment charges are recorded as other expense, net. We estimate future undiscounted cash flows using assumptions about our expected future operating performance. Our estimates of undiscounted cash flows may change in future periods due to, among other things, technological changes, economic conditions, changes to our business operations or inability to meet business plans. Such changes may result in impairment charges in the period in which such changes in estimates are made.

Goodwill and Other Intangible Assets

In accordance with SFAS No. 142, “Goodwill and Other Intangible Assets” (“FAS 142”), goodwill and intangible assets with indefinite lives are not amortized but instead measured for impairment at least annually in the fourth fiscal quarter, or when events indicate that an impairment exists. As required by FAS 142, in our impairment tests for goodwill and other indefinite-lived intangible assets, we compare the estimated fair value of goodwill and other intangible assets to the carrying value. If the carrying value exceeds our estimate of fair value, we calculate impairment as the excess of the carrying value over our estimate of fair value. Our estimates of fair value utilized in goodwill and other indefinite-lived intangible asset tests may be based upon a number of factors, including our assumptions about the expected future operating performance of our reporting units. Our estimates may change in future periods due to, among other things, technological change, economic conditions, changes to our business operations or inability to meet business plans. Such changes may result in impairment charges recorded in future periods. Any impairment charge related to goodwill would be classified as a separate line item on our consolidated statement of income as part of income before income taxes and any impairment charge related to other indefinite-lived intangible assets would be classified as other expense, net.

Intangible assets that are determined to have definite lives are amortized over their useful lives and are measured for impairment only when events or circumstances indicate the carrying value may be impaired. In these cases, we estimate the future undiscounted cash flows to be derived from the asset to determine whether or not a potential impairment exists. If the carrying value exceeds our estimate of future undiscounted cash flows, we then calculate the impairment as the excess of the carrying value of the asset over our estimate of its fair value. Any impairment charges would be classified as other expense, net.

Hedge Accounting for Derivatives

We use forward exchange contracts and option contracts to hedge certain anticipated foreign currency exchange transactions, as well as any resulting receivable or payable balance. When specific criteria required by SFAS No. 133, “Accounting for Derivative and Hedging Activities,” as amended and interpreted (“FAS 133”) have been met, changes in fair values of hedge contracts relating to anticipated transactions are recorded in other