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Derivatives, Hedges and Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2024
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Summary of Financial Instruments | As of December 31, 2024 and 2023, we did no t have any financial instruments with fair values materially different from their carrying amounts (which excludes issuance costs, if applicable) except for our Senior Secured Notes. The fair value of our Senior Secured Notes is classified as a Level 2 fair value measurement while the treasury securities that comprise our cash equivalents and short-term investments are a Level 1. The fair value of financial instruments is not indicative of the overall fair value of our assets and liabilities since financial instruments do not include all assets, including intangibles and all liabilities.
|  | 2024 |  |  | 2023 |
|  | Carrying |  |  | Estimated |  |  | Carrying |  |  | Estimated |
|  | Amount |  |  | Fair Value |  |  | Amount |  |  | Fair Value |
|  | (In Millions) |
Senior Secured Notes (1) |  | $ | 478 |  |  | $ | 461 |  |  | $ | 575 |  |  | $ | 543 |
Short-Term Investments |  | $ | 164 |  |  | $ | 164 |  |  | $ | 207 |  |  | $ | 207 |
_____________________________ 1. Based on a quoted price of 96.38 as of December 31, 2024 and 94.50 as of December 31, 2023.

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- Definition The entire disclosure for financial instruments. This disclosure includes, but is not limited to, fair value measurements of short and long term marketable securities, international currencies forward contracts, and auction rate securities. Financial instruments may include hedging and non-hedging currency exchange instruments, derivatives, securitizations and securities available for sale at fair value. Also included are investment results, realized and unrealized gains and losses as well as impairments and risk management disclosures. + References No definition available. + Details
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