Investments - Schedule of Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Less than 12 months
Fair Value		$ 445
Unrealized Loss		0
Greater than 12 months
Fair Value		71
Unrealized Loss		(1)
Total
Fair Value		516
Unrealized Loss		(1)
Corporate bonds
Less than 12 months
Fair Value	$ 1,240	434
Unrealized Loss	(6)	0
Greater than 12 months
Fair Value	12	7
Unrealized Loss	0	0
Total
Fair Value	1,252	441
Unrealized Loss	$ (6)	0
Government and agency securities
Less than 12 months
Fair Value		11
Unrealized Loss		0
Greater than 12 months
Fair Value		64
Unrealized Loss		(1)
Total
Fair Value		75
Unrealized Loss		$ (1)

Debt Securities, Available-for-Sale, 12 Months Or Longer

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Debt Securities, Available-for-Sale, Less than 12 Months

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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