Fair Value Measurements - Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - Recurring Basis - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Investments:
Total assets measured at fair value on a recurring basis	$ 1,662	$ 1,700
Derivatives:
Total liabilities measured at fair value on a recurring basis	34
Foreign currency forward contracts
Derivatives:
Derivatives	22	2
Cross-currency interest rate swaps
Derivatives:
Derivatives		25
Derivatives:
Derivatives	12
Level 1
Investments:
Total assets measured at fair value on a recurring basis	816	1,008
Derivatives:
Total liabilities measured at fair value on a recurring basis	0
Level 1 | Foreign currency forward contracts
Derivatives:
Derivatives	0	0
Level 1 | Cross-currency interest rate swaps
Derivatives:
Derivatives		0
Derivatives:
Derivatives	0
Level 2
Investments:
Total assets measured at fair value on a recurring basis	846	692
Derivatives:
Total liabilities measured at fair value on a recurring basis	34
Level 2 | Foreign currency forward contracts
Derivatives:
Derivatives	22	2
Level 2 | Cross-currency interest rate swaps
Derivatives:
Derivatives		25
Derivatives:
Derivatives	12
Money market funds
Cash equivalents:
Cash equivalents	196	113
Money market funds | Level 1
Cash equivalents:
Cash equivalents	196	113
Money market funds | Level 2
Cash equivalents:
Cash equivalents	0	0
Term deposits and certificates of deposit
Cash equivalents:
Cash equivalents	161	163
Investments:
Investments	29	3
Term deposits and certificates of deposit | Level 1
Cash equivalents:
Cash equivalents	0	0
Investments:
Investments	0	0
Term deposits and certificates of deposit | Level 2
Cash equivalents:
Cash equivalents	161	163
Investments:
Investments	29	3
U.S. agency securities
Cash equivalents:
Cash equivalents	7
Investments:
Investments	17	8
U.S. agency securities | Level 1
Cash equivalents:
Cash equivalents
Investments:
Investments	0	0
U.S. agency securities | Level 2
Cash equivalents:
Cash equivalents	7
Investments:
Investments	17	8
Commercial paper
Cash equivalents:
Cash equivalents	58	2
Investments:
Investments	8	2
Commercial paper | Level 1
Cash equivalents:
Cash equivalents	0	0
Investments:
Investments	0	0
Commercial paper | Level 2
Cash equivalents:
Cash equivalents	58	2
Investments:
Investments	8	2
Equity investments
Investments:
Investments	620	895
Equity investments | Level 1
Investments:
Investments	620	895
Equity investments | Level 2
Investments:
Investments	0	0
Corporate debt securities
Investments:
Investments	409	354
Corporate debt securities | Level 1
Investments:
Investments	0	0
Corporate debt securities | Level 2
Investments:
Investments	409	354
U.S. treasury securities
Investments:
Investments	32	70
U.S. treasury securities | Level 1
Investments:
Investments	0	0
U.S. treasury securities | Level 2
Investments:
Investments	32	70
Asset-backed securities
Investments:
Investments	125	62
Asset-backed securities | Level 1
Investments:
Investments	0	0
Asset-backed securities | Level 2
Investments:
Investments	$ 125	62
Non-U.S. government securities
Investments:
Investments		3
Non-U.S. government securities | Level 1
Investments:
Investments		0
Non-U.S. government securities | Level 2
Investments:
Investments		$ 3