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INVESTMENTS (Tables)

3 Months Ended

Mar. 31, 2026

Investments, Debt and Equity Securities [Abstract]

Schedule of Financial Instruments by Significant Categories and Fair Value Measurement on a Recurring Basis

The following tables summarize our financial instruments by significant categories and fair value measurement on a recurring basis as of March 31, 2026 and December 31, 2025 and the amortized cost, gross unrealized gains, gross unrealized losses and fair value of our AFS investments:

(in millions)			Fair Value Level			Amortized Cost			Gross Unrealized Gains			Gross Unrealized Losses			Fair Value			Cash and Cash Equivalents						Restricted Cash, Cash Equivalents and Investments
March 31, 2026
Cash equivalents:
Money market mutual funds			Level 1			$	198		$	—		$	—		$	198		$	92					$	106
U.S. treasuries			Level 2			10			—			—			10			—						10
Total cash equivalents						208			—			—			208			92						116
AFS Investments:
Corporate bonds			Level 2			30			—			—			30			—						30
Agency securities			Level 2			11			—			—			11			—						11
U.S. treasuries			Level 2			151			1			(1)			151			—						151
Total AFS Investments						$	192		$	1		$	(1)		$	192		$	—					$	192

(in millions)			Fair Value Level			Amortized Cost			Gross Unrealized Gains			Gross Unrealized Losses			Fair Value			Cash and Cash Equivalents						Restricted Cash, Cash Equivalents and Investments
December 31, 2025
Cash equivalents:
Money market mutual funds			Level 1			$	483		$	—		$	—		$	483		$	96					$	387
U.S. treasuries			Level 2			2			—			—			2			—						2
Total cash equivalents						485			—			—			485			96						389
AFS Investments:
Corporate bonds			Level 2			34			—			—			34			—						34
Agency securities			Level 2			11			—			—			11			—						11
U.S. treasuries			Level 2			160			2			—			162			—						162
Total AFS Investments						$	205		$	2		$	—		$	207		$	—					$	207

Schedule of Fair value of Debt Investments by Contractual Maturity

The fair value of debt investments by contractual maturity are shown below:

(in millions)						March 31, 2026
One year or less						$	10
Over one year through five years						177
Over five years through ten years						5
Total fair value						$	192

Schedule of Available-for-Sale Securities

The gross proceeds from sales and maturities of AFS securities and gross realized losses for the three months ended March 31, 2026 and 2025 are presented below. We had immaterial gross realized gains from sales of investments for the three months ended March 31, 2026 and 2025.

			Three Months Ended March 31,
(in millions)			2026			2025
Gross realized losses			$	—		$	(1)
Gross proceeds from sales			37			31
Gross proceeds from maturities			1			3

X

- Definition

Tabular disclosure of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 9
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-9

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Reference 6: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (aa)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (aaa)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

Reference 10: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

Reference 11: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 320
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481800/320-10-50-3

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+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 820
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-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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-Publisher FASB
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