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Segment Information (Narrative) (Details)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
Sep. 30, 2022
USD ($)
Segment
Sep. 30, 2021
USD ($)
Segment Reporting [Abstract]        
Number of segments | Segment     5  
Segment Reporting Information [Line Items]        
Total revenues $ 22,270 $ 16,905 $ 53,582 $ 50,991
Revenue Benchmark        
Segment Reporting Information [Line Items]        
Concentration Risk, Benchmark Description 10 10 10 10
U.S. | One.U.S.Customer        
Segment Reporting Information [Line Items]        
Total revenues $ 8,100   $ 8,100  
U.S. | One.U.S.Customer | Revenue Benchmark | Customer Concentration Risk        
Segment Reporting Information [Line Items]        
Concentration Risk, Percentage 42.00%   18.00%