A company is recognizing a new asset retirement obligation for a facility's future decommissioning. Its engineers develop three possible decommissioning cost scenarios: a $2 million scenario management assigns a 20% probability, a $3 million scenario assigned a 50% probability, and a $5 million scenario assigned a 30% probability. Under ASC 410-20, what undiscounted cash flow estimate should the company use as the basis for measuring the fair value of this obligation, and what technique does this reflect?
- The company should use the single $3 million most-likely-outcome scenario alone, discounted at a risk-free rate, because ASC 410-20 requires selecting the most probable individual outcome rather than incorporating multiple scenarios
- The company should use the probability-weighted expected cash flow of $3.4 million (($2 million x 20%) + ($3 million x 50%) + ($5 million x 30%)), reflecting the expected present value technique that ASC 410-20 identifies as the preferred approach when a range of possible outcomes exists, with the resulting expected cash flow then discounted at the credit-adjusted risk-free rate
- The company should use the highest of the three scenarios, $5 million, on the basis that ASC 410-20 requires the most conservative, highest-cost undiscounted estimate whenever multiple outcomes are identified
- The company should use a simple, unweighted average of the three scenarios, $3.33 million, because ASC 410-20 requires equal weighting of all identified outcomes regardless of their assigned probabilities
Why B? And why not the others?
Correct answer: B. The company should use the probability-weighted expected cash flow of $3.4 million (($2 million x 20%) + ($3 million x 50%) + ($5 million x 30%)), reflecting the expected present value technique that ASC 410-20 identifies as the preferred approach when a range of possible outcomes exists, with the resulting expected cash flow then discounted at the credit-adjusted risk-free rate
ASC 410-20-30-3 through 30-4 identifies the expected present value technique as the preferred approach for measuring the fair value of an asset retirement obligation in most circumstances, particularly whenever a range of possible settlement dates and cash flow scenarios exists. That technique weights each identified outcome by its assigned probability to arrive at a single expected cash flow estimate, which is then discounted using the credit-adjusted risk-free rate to arrive at the liability's present value. Here the probability-weighted calculation is $2 million times 20%, plus $3 million times 50%, plus $5 million times 30%, totaling $3.4 million. The option selecting only the single most-likely scenario ignores that ASC 410-20 specifically calls for incorporating the full range of identified outcomes through probability weighting rather than picking one scenario and discarding the rest. The option selecting the highest-cost scenario fabricates a conservatism-based rule that does not appear in ASC 410-20; the standard calls for a probability-weighted expectation, not a worst-case assumption. The option using a simple unweighted average ignores the probabilities management has actually assigned to each scenario, substituting equal weighting for the information given, which is inconsistent with the expected-present-value method's core purpose of reflecting the relative likelihood of each outcome.
Source: FASB ASC 410-20-30-3 through 30-4 (expected present value technique for measuring the fair value of an asset retirement obligation)