Management’s Discussion and Analysis of Financial Condition and Results of Operations continued Interest Rate Caps We also have interest rate caps which we use as an economic hedge but for which we have elected not to apply hedge accounting. We enter into interest rate caps to mitigate our interest exposure to interest rate increases on our ABS Financing Facility and Asset-Backed Notes. The fair value of these contracts was insignificant at December 31, 2017 and 2016. At December 31, 2017 and 2016, the total notional value of these contracts was $2.8 billion and $2.5 billion, respectively. Foreign Currency Translation The functional currency for our foreign operations is primarily the local currency. The translation of income statement and balance sheet amounts of our foreign operations into U.S. dollars is recorded as cumulative translation adjustments, which are included in Accumulated other comprehensive income in our consolidated balance sheets. Gains and losses on foreign currency transactions are recorded in the consolidated statements of income in Other income (expense), net. At December 31, 2017, our primary translation exposure was to the British Pound Sterling, Euro, Australian Dollar and Japanese Yen. Cross Currency Swaps We enter into cross currency swaps to exchange British Pound Sterling, Euro, Swiss Franc and Australian Dollar- denominated cash flows into U.S. dollars and to fix our cash payments in U.S. dollars, as well as to mitigate the impact of foreign currency transaction gains or losses. These swaps are designated as cash flow hedges. The fair value of the asset of these contracts was $0.5 billion and insignificant at December 31, 2017 and 2016, respectively. At December 31, 2017 and 2016, the fair value of the liability of these contracts was insignificant and $1.8 billion, respectively. At December 31, 2017 and 2016, the total notional amount of the cross currency swaps was $16.6 billion and $12.9 billion, respectively. Critical Accounting Estimates and Recently Issued Accounting Standards Critical Accounting Estimates A summary of the critical accounting estimates used in preparing our financial statements is as follows: Wireless licenses and Goodwill are a significant component of our consolidated assets. Both our wireless licenses and goodwill are treated as indefinite-lived intangible assets and, therefore are not amortized, but rather are tested for impairment annually in the fourth fiscal quarter, unless there are events requiring an earlier assessment or changes in circumstances during an interim period that indicate these assets may not be recoverable. We believe our estimates and assumptions are reasonable and represent appropriate marketplace considerations as of the valuation date. Although we use consistent methodologies in developing the assumptions and estimates underlying the fair value calculations used in our impairment tests, these estimates and assumptions are uncertain by nature, may change over time and can vary from actual results. It is possible that in the future there may be changes in our estimates and assumptions, including the timing and amount of future cash flows, margins, growth rates, market participant assumptions, comparable benchmark companies and related multiples and discount rates, which could result in different fair value estimates. Significant and adverse changes to any one or more of the above-noted estimates and assumptions could result in a goodwill impairment for one or more of our reporting units. Wireless Licenses The carrying value of our wireless licenses was approximately $88.4 billion as of December 31, 2017. We aggregate our wireless licenses into one single unit of accounting, as we utilize our wireless licenses on an integrated basis as part of our nationwide wireless network. Our wireless licenses provide us with the exclusive right to utilize certain radio frequency spectrum to provide wireless communication services. There are currently no legal, regulatory, contractual, competitive, economic or other factors that limit the useful life of our wireless licenses. In 2017 and 2016, we performed a qualitative impairment assessment to determine whether it is more likely than not that the fair value of our wireless licenses was less than the carrying amount. As part of our assessment we considered several qualitative factors including the business enterprise value of Wireless, macroeconomic conditions (including changes in interest rates and discount rates), industry and market considerations (including industry revenue and EBITDA margin projections), the projected financial performance of Wireless, as well as other factors. Based on our assessments in 2017 and 2016, we qualitatively concluded that it was more likely than not that the fair value of our wireless licenses exceeded their carrying value and, therefore, did not result in an impairment. 38
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