Marketable Securities - Current and Non-current (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale
Current marketable securities	$ 1,245	$ 50
Non-current marketable securities	20	20
Total marketable securities	1,265	70
Asset backed securities
Debt Securities, Available-for-sale
Current marketable securities	12	0
Foreign corporate debt
Debt Securities, Available-for-sale
Current marketable securities	32	0
U.S. government securities
Debt Securities, Available-for-sale
Current marketable securities	41	0
Corporate debt securities
Debt Securities, Available-for-sale
Current marketable securities	459	0
Commercial paper
Debt Securities, Available-for-sale
Current marketable securities	390	0
Certificates of deposit/time deposits
Debt Securities, Available-for-sale
Current marketable securities	98	46
U.S. treasury securities
Debt Securities, Available-for-sale
Current marketable securities	209	0
U.S. municipal securities
Debt Securities, Available-for-sale
Current marketable securities	4	4
Non-current marketable securities	$ 20	$ 20

Amount excluding accrued interest, of 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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