Fair Value Measurements |
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| Fair Value Disclosures [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 17. FAIR VALUE MEASUREMENTS | 17. FAIR VALUE MEASUREMENTS We record certain assets and liabilities, primarily derivative instruments, on our consolidated balance sheets at fair value. We also disclose the fair values of certain financial instruments, including debt and loans receivable, which are not recorded at fair value. Our objective in measuring fair value is to estimate an exit price in an orderly transaction between market participants on the measurement date. We consider factors such as liquidity, bid/offer spreads, and nonperformance risk, including our own nonperformance risk, in measuring fair value. We use observable market inputs wherever possible. To the extent observable market inputs are not available, our fair value measurements will reflect the assumptions used. We grade the level of the inputs and assumptions used according to a three-tier hierarchy: Level 1 — Unadjusted quoted prices in active markets for identical, unrestricted assets or liabilities we have the ability to access at the measurement date. Level 2 — Inputs other than quoted prices included within Level 1 that are observable for the asset or liability, either directly or indirectly. Level 3 — Unobservable inputs for which there is little or no market data, which require us to develop our own assumptions based on the best information available as to what market participants would use in pricing the asset or liability. The following describes the valuation methodologies we used to measure our various financial instruments at fair value, including an indication of the level in the fair value hierarchy in which each instrument is generally classified. Derivative Contracts For certain derivative contracts with fair values based upon trades in liquid markets, such as aluminum, zinc, copper, foreign exchange, interest rates, natural gas, and diesel fuel forward contracts and options, valuation model inputs can generally be verified and valuation techniques do not involve significant judgment. The fair values of such financial instruments are generally classified within Level 2 of the fair value hierarchy. The majority of our derivative contracts are valued using industry-standard models with observable market inputs as their basis, such as time value, forward interest rates, volatility factors, and current (spot) and forward market prices. We generally classify these instruments within Level 2 of the valuation hierarchy. Such derivatives include interest rate swaps, cross-currency swaps, foreign currency contracts, aluminum, copper, and zinc forward contracts, and natural gas and diesel fuel forward contracts. For Level 2 and 3 of the fair value hierarchy, where appropriate, valuations are adjusted for various factors such as liquidity, bid/offer spreads, and credit considerations (nonperformance risk). We regularly monitor these factors along with significant market inputs and assumptions used in our fair value measurements and evaluate the level of the valuation input according to the fair value hierarchy. This may result in a transfer between levels in the hierarchy from period to period. As of March 31, 2025 and March 31, 2024, we did not have any Level 1 derivative contracts. No amounts were transferred between levels in the fair value hierarchy. All of the Company's derivative instruments are carried at fair value in the statements of financial position prior to considering master netting agreements. The fair values of all derivative instruments are recognized as assets or liabilities at the balance sheet date and are reported gross. The following table presents our derivative assets and liabilities which were measured and recognized at fair value on a recurring basis classified under the appropriate level of the fair value hierarchy as of March 31, 2025, and March 31, 2024. The table below also discloses the net fair value of the derivative instruments after considering the impact of master netting agreements.
_________________________ (1)Amounts represent the impact of legally enforceable master netting agreements that allow the Company to settle positive and negative positions with the same counterparties. In connection with the Aleris acquisition, which closed in April 2020, we were obligated to divest Aleris' European and North American automotive assets as a result of the antitrust review process. In the second quarter of fiscal 2021, we closed on the sale of Duffel to ALVANCE. Upon closing, we recorded a receivable for contingent consideration as a result of the sale at a fair value of €93 million ($109 million) measured based on the anticipated outcome, timeline of arbitration of greater than one year, and a discount rate of 5%. During the first quarter of fiscal 2022, Novelis marked all outstanding related to the sale of Duffel to an estimated fair value of €45 million ($53 million), which resulted in a loss of €51 million ($61 million) recorded in loss from discontinued operations, net of tax. In December 2022, the Company reached an agreement with the current owner of Duffel, where the outstanding contingent consideration receivable was settled in exchange for €5 million ($5 million) in cash and a note receivable in the amount of €40 million ($41 million). The note bears interest at the annual rate of 5% and matures on December 31, 2027, with interest and €0.2 million of principle payable semi-annually and the remainder of the principal payable at maturity. The note receivable is not carried at fair value, but we will continue to assess its collectibility on a quarterly basis. The fair value of the note receivable is determined using Level 2 inputs and is materially consistent with the carrying value. Financial Instruments Not Recorded at Fair Value The table below presents the estimated fair value of certain financial instruments not recorded at fair value on a recurring basis. The table excludes finance leases and short-term financial assets and liabilities for which we believe carrying value approximates fair value. We value long-term receivables and long-term debt using Level 2 inputs. Valuations are based on either market and/or broker ask prices when available or on a standard credit adjusted discounted cash flow model using market observable inputs.
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