Fair Value Measurements - Financial Instruments Measured at Fair Value (Details) - Recurring Basis - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Investments:
Total assets	$ 859	$ 839
Cross-currency interest rate swaps
Derivatives:
Derivatives	8	21
Foreign currency forward contracts
Derivatives:
Derivatives		15
Derivatives:
Foreign currency forward contracts	9
Money market funds
Cash equivalents:
Cash equivalents	168	3
Term deposits
Cash equivalents:
Cash equivalents	71	188
Investments:
Investments	28	48
Equity investments
Investments:
Investments	584	564
Level 1
Investments:
Total assets	752	52
Level 1 | Cross-currency interest rate swaps
Derivatives:
Derivatives	0	0
Level 1 | Foreign currency forward contracts
Derivatives:
Derivatives		0
Derivatives:
Foreign currency forward contracts	0
Level 1 | Money market funds
Cash equivalents:
Cash equivalents	168	3
Level 1 | Term deposits
Cash equivalents:
Cash equivalents	0	0
Investments:
Investments	0	0
Level 1 | Equity investments
Investments:
Investments	584	49
Level 2
Investments:
Total assets	107	787
Level 2 | Cross-currency interest rate swaps
Derivatives:
Derivatives	8	21
Level 2 | Foreign currency forward contracts
Derivatives:
Derivatives		15
Derivatives:
Foreign currency forward contracts	9
Level 2 | Money market funds
Cash equivalents:
Cash equivalents	0	0
Level 2 | Term deposits
Cash equivalents:
Cash equivalents	71	188
Investments:
Investments	28	48
Level 2 | Equity investments
Investments:
Investments	$ 0	$ 515