Investments Accounted for by the Equity Method and Variable Interest Entities - Summarized Financial Information (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Accounts receivable	$ 3,245	$ 904
Total Assets	23,182	14,902
Current liabilities	7,915	1,915
Variable Interest Entity, Primary Beneficiary
Schedule of Equity Method Investments [Line Items]
Accounts receivable	939	647
Other current assets	0	2
Total Assets	939	649
Current liabilities	78	78
Net assets	$ 861	$ 571