XML 23 R12.htm IDEA: XBRL DOCUMENT
v3.25.2

Assets and Liabilities Measured at Fair Value | 6 Months Ended
--- | ---
Jun. 30, 2025
Assets and Liabilities Measured at Fair Value |
Assets and Liabilities Measured at Fair Value | (4) Assets and Liabilities Measured at Fair Value For assets and liabilities required to be reported at fair value, GAAP provides a hierarchy that prioritizes inputs to valuation techniques used to measure fair value into three broad levels. Level 1 inputs are quoted market prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 2 inputs are inputs, other than quoted market prices included within Level 1, that are observable for the asset or liability, either directly or indirectly. Level 3 inputs are unobservable inputs for the asset or liability. The Company's assets and liabilities measured at fair value on a recurring basis are as follows: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Fair Value Measurements at | ​ | Fair Value Measurements at |
​ | ​ | June 30, 2025 | ​ | December 31, 2024 |
​ |  | ​ | ​ |  | Quoted |  | ​ |  | ​ |  | Quoted |  | ​ |
​ | ​ | ​ | ​ | ​ | prices | ​ | ​ | ​ | ​ | ​ | prices | ​ | ​ |
​ | ​ | ​ | ​ | ​ | in active | ​ | Significant | ​ | ​ | ​ | in active | ​ | Significant |
​ | ​ | ​ | ​ | ​ | markets for | ​ | other | ​ | ​ | ​ | markets for | ​ | other |
​ | ​ | ​ | ​ | ​ | identical | ​ | observable | ​ | ​ | ​ | identical | ​ | observable |
​ | ​ | ​ | ​ | ​ | assets | ​ | inputs | ​ | ​ | ​ | assets | ​ | inputs |
Description | ​ | Total | ​ | (Level 1) | ​ | (Level 2) | ​ | Total | ​ | (Level 1) | ​ | (Level 2) |
​ | ​ | amounts in millions |
Cash equivalents | ​ | $ | 628 |  | 628 |  | — |  | 652 |  | 652 |  | — | ​
Debt | ​ | $ | 86 |  | — |  | 86 |  | 282 |  | — |  | 282 | ​
​ The Company's Level 2 financial liabilities are debt instruments with quoted market prices that are not considered to be traded on "active markets," as defined in GAAP. The fair values for such instruments are derived from a typical model using observable market data as the significant inputs. ​ Realized and Unrealized Gains (Losses) on Financial Instruments Realized and unrealized gains (losses) on financial instruments are comprised of changes in the fair value of the following: ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended | ​ | Six months ended |
​ | ​ | June 30, | ​ | June 30, |
​ |  | 2025 |  | 2024 |  | 2025 |  | 2024 |
​ | ​ | amounts in millions |
Equity securities | ​ | $ | (1) | ​ | — | ​ | (1) | ​ | (2) | ​
Exchangeable senior debentures | ​ |  | (20) |  | (10) |  | (35) |  | (15) | ​
​ | ​ | $ | (21) |  | (10) |  | (36) |  | (17) | ​
​ The Company has elected to account for its exchangeable debt using the fair value option. Changes in the fair value of the exchangeable senior debentures recognized in the condensed consolidated statement of operations are primarily due to market factors largely driven by changes in the fair value of the underlying shares into which the debt is exchangeable. The Company isolates the portion of the unrealized gain (loss) attributable to the change in the instrument specific credit risk and recognizes such amount in other comprehensive earnings (loss). The change in the fair value of the exchangeable senior debentures attributable to changes in the instrument specific credit risk was a gain of $176 million and a gain of $92 million for the three months ended June 30, 2025 and 2024, respectively, and a gain of $229 million and a loss of $38 million for the six months ended June 30, 2025 and 2024, respectively. The cumulative change was a gain of $742 million as of June 30, 2025, net of the recognition of previously unrecognized gains and losses.

X
- References No definition available. + Details
Name: | us-gaap_FairValueDisclosuresAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 107 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-107 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 100 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-100 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c)(3) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2E -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2E Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (e) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (g) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-2 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Topic 940 -SubTopic 820 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478119/940-820-50-1 + Details
Name: | us-gaap_FairValueDisclosuresTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration