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Investments Accounted for Using the Equity Method and Variable Interest Entities, or VIEs - Summarized Financial Information (Details) - USD ($)
$ in Millions
Jun. 30, 2022
Dec. 31, 2021
Investments Accounted for by the Equity Method    
Accounts receivable and Other current assets $ 21,148 $ 10,841
Current liabilities 16,437 7,915
Variable Interest Entity, Primary Beneficiary    
Investments Accounted for by the Equity Method    
Accounts receivable and Other current assets 1,017 939
Current liabilities 153 78
Net assets $ 864 $ 861