Investments Accounted for Using the Equity Method and Variable Interest Entities, or VIEs - Summarized Financial Information (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Investments Accounted for by the Equity Method
Accounts receivable and Other current assets	$ 9,806	$ 9,727
Current liabilities	8,302	9,500
Variable Interest Entity, Primary Beneficiary
Investments Accounted for by the Equity Method
Accounts receivable and Other current assets	2,527	1,541
Current liabilities	153	153
Net assets	$ 2,374	$ 1,388