Letters of Credit. As of December 31, 2016, we had \$69 million of irrevocable standby letters of credit outstanding, of which \$1 million were under our revolving credit facility. As of December 31, 2015, we had \$63 million of irrevocable standby letters of credit outstanding, of which \$1 million were under our revolving credit facility. Such letters of credit issued during 2016 and 2015 primarily supported the securitization of vacation ownership contract receivables fundings, certain insurance policies and development activity at our vacation ownership business.

Surety Bonds. As of December 31, 2016, we had assembled commitments from 12 surety providers in the amount of \$1.3 billion, of which \$488 million was outstanding (See Note 17- Commitments and Contingencies).

# CRITICAL ACCOUNTING POLICIES

In presenting our financial statements in conformity with generally accepted accounting principles, we are required to make estimates and assumptions that affect the amounts reported therein. Several of the estimates and assumptions we are required to make relate to matters that are inherently uncertain as they pertain to future events. However, events that are outside of our control cannot be predicted and, as such, they cannot be contemplated in evaluating such estimates and assumptions. If there is a significant unfavorable change to current conditions, it could result in a material impact to our consolidated results of operations, financial position and liquidity. We believe that the estimates and assumptions we used when preparing our financial statements were the most appropriate at that time. Presented below are those accounting policies that we believe require subjective and complex judgments that could potentially affect reported results. However, the majority of our businesses operate in environments where we are paid a fee for a service performed, and therefore the results of the majority of our recurring operations are recorded in our financial statements using accounting policies that are not particularly subjective, nor complex.

Vacation Ownership Revenue Recognition. Our sales of VOIs are either cash sales or seller-financed sales. In order for us to recognize revenues of VOI sales under the full accrual method of accounting, as prescribed in the guidance for sales of real estate for fully constructed inventory, a binding sales contract must have been executed, the statutory rescission period must have expired (after which time the purchasers are not entitled to a refund except for non-delivery by us), receivables must have been deemed collectible and the remainder of our obligations must have been substantially completed. In addition, before we recognize any revenues on VOI sales, the purchaser of the VOI must have met the initial investment criteria and, as applicable, the continuing investment criteria, by executing a legally binding financing contract. A purchaser has met the initial investment criteria when a minimum down payment of 10% is received by us. In accordance with the requirements of the guidance for real estate time-sharing transactions, we must also take into consideration the fair value of certain incentives provided to the purchaser when assessing the adequacy of the purchaser’s initial investment. In those cases where financing is provided to the purchaser by us, the purchaser is obligated to remit monthly payments under financing contracts that represent the purchaser’s continuing investment. The contractual terms of seller-provided financing arrangements require that the contractual level of annual principal payments be sufficient to amortize the loan over a customary period for the VOI being financed, which is generally ten years, and payments under the financing contracts begin within 45 days of the sale and receipt of the minimum down payment of 10%.

Allowance for Loan Losses. In our Vacation Ownership segment, we provide for estimated vacation ownership contract receivable defaults at the time of VOI sales by recording a provision for loan losses as a reduction of VOI sales on the Consolidated Statements of Income. We assess the adequacy of the allowance for loan losses based on the historical performance of similar vacation ownership contract receivables. We use a technique referred to as static pool analysis, which tracks defaults for each year’s sales over the entire life of those contract receivables. We consider current defaults, past due aging, historical write-offs of contracts and consumer credit scores (FICO scores) in the assessment of borrower’s credit strength, down payment amount and expected loan performance. We also consider whether the historical economic conditions are comparable to current economic conditions. If current conditions differ from the conditions in effect when the historical experience was generated, we adjust the allowance for loan losses to reflect the expected effects of the current environment on the collectability of our vacation ownership contract receivables.

Impairment of Long-Lived Assets. With regard to the goodwill and other indefinite-lived intangible assets recorded in connection with business combinations, we annually (during the fourth quarter of each year subsequent to completing our annual forecasting process), or more frequently if circumstances indicate that the value of goodwill may be impaired, review the reporting units’ carrying values as required by the guidance for goodwill and other intangible assets. This is done either by performing a qualitative assessment or utilizing the two-step process, with an impairment being recognized only where the fair value is less than carrying value. In any given year we can elect to perform a qualitative assessment to determine whether it is more likely than not that the fair value of a reporting unit is in excess of its carrying value. If it is not more likely than not that the fair value is in excess of the carrying value, or we elect to bypass the qualitative assessment, we would utilize the two-step process. The qualitative factors evaluated include macroeconomic conditions, industry and market considerations, cost factors, overall financial performance, our historical share price as well as other industry specific considerations. We performed a

qualitative assessment for impairment on each reporting unit’s goodwill. Based on the results of our qualitative assessments performed during the fourth quarter of 2016, we determined that no impairment existed, nor do we believe there is a material risk of it being impaired in the near term at our hotel group, destination network and vacation ownership reporting units. To the extent estimated market-based valuation multiples and/or discounted cash flows are revised downward, we may be required to write-down all or a portion of goodwill, which would adversely impact earnings.

We also determine whether the carrying value of other indefinite-lived intangible assets is impaired on an annual basis or more frequently if indicators of potential impairment exist. Application of the other indefinite-lived intangible assets impairment test requires judgment in the assumptions underlying the approach used to determine fair value. The fair value of each other indefinite-lived intangible asset is estimated using a discounted cash flow methodology. This analysis requires significant judgments, including anticipated market conditions, operating expense trends, estimation of future cash flows, which are dependent on internal forecasts, and estimation of long-term rate of growth. The estimates used to calculate the fair value of other indefinite-lived intangible asset change from year to year based on operating results and market conditions. Changes in these estimates and assumptions could materially affect the determination of fair value and the other indefinite-lived intangible assets impairment.

We also evaluate the recoverability of our other long-lived assets, including property and equipment and amortizable intangible assets, if circumstances indicate impairment may have occurred, pursuant to guidance for impairment or disposal of long-lived assets. This analysis is performed by comparing the respective carrying values of the assets to the current and expected future cash flows, on an undiscounted basis, to be generated from such assets. Property and equipment is evaluated separately within each segment. If such analysis indicates that the carrying value of these assets is not recoverable, the carrying value of such assets is reduced to fair value.

Business Combinations. A component of our growth strategy has been to acquire and integrate businesses that complement our existing operations. We account for business combinations in accordance with the guidance for business combinations and related literature. Accordingly, we allocate the purchase price of acquired companies to the tangible and intangible assets acquired and liabilities assumed based upon their estimated fair values at the date of purchase. The difference between the purchase price and the fair value of the net assets acquired is recorded as goodwill.

In determining the fair values of assets acquired and liabilities assumed in a business combination, we use various recognized valuation methods including present value modeling and referenced market values (where available). Further, we make assumptions within certain valuation techniques including discount rates and timing of future cash flows. Valuations are performed by management or independent valuation specialists under management’s supervision, where appropriate. We believe that the estimated fair values assigned to the assets acquired and liabilities assumed are based on reasonable assumptions that marketplace participants would use. However, such assumptions are inherently uncertain and actual results could differ from those estimates.