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FAIR VALUE MEASUREMENTS - Amortized Cost Basis, Unrealized Gains and Losses and Fair Values of Investments in Available-for-sale Securities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Abstract]
Short-term cash investments	$ 6	$ 6
Debt Securities
Debt Securities, Available-for-sale [Abstract]
Cost Basis	299	301
Unrealized Gains	0	1
Unrealized Losses	(23)	(27)
Fair Value	$ 276	$ 275

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Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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