Fair Value Measurements |
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| Fair Value Disclosures [Abstract] | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Fair Value Measurements | Fair Value Measurements The carrying values and estimated fair values of certain of our financial instruments were as follows (in millions):
(1)The estimated fair value of the 2030 Second Lien Notes (as defined in "Note 8 - Debt") was determined using quoted market prices, which are level 1 inputs. (2)The estimated fair value of the Notes Receivable from ARO was estimated using an income approach to value the forecasted cash flows attributed to the Notes Receivable from ARO using a discount rate based on a comparable yield with a country-specific risk premium, which are considered to be level 2 inputs. The estimated fair values of our cash and cash equivalents, restricted cash, accounts receivable and trade payables approximated their carrying values as of June 30, 2026 and December 31, 2025.
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