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Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents (Details) - USD ($)
$ in Millions
3 Months Ended
Sep. 30, 2023
Dec. 31, 2022
Sep. 30, 2022
Dec. 31, 2021
Restricted Cash and Cash Equivalents Items [Line Items]        
Cash and cash equivalents $ 6,890 $ 7,008    
Cash, cash equivalents, restricted cash and restricted cash equivalents 8,742 9,196 $ 9,776 $ 9,902
Cash paid for litigation settlement 600      
Restricted cash for litigation settlement        
Restricted Cash and Cash Equivalents Items [Line Items]        
Restricted cash and restricted cash equivalents 0 589    
Restricted security deposits held for customers        
Restricted Cash and Cash Equivalents Items [Line Items]        
Restricted cash and restricted cash equivalents 1,824 1,568    
Prepaid expenses and other current assets        
Restricted Cash and Cash Equivalents Items [Line Items]        
Restricted cash and restricted cash equivalents $ 28 $ 31