Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Details)

v3.20.2
Segment Information (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2020
USD ($)
segment
Jun. 30, 2019
USD ($)
Segment Reporting [Abstract]        
Number of operating segments | segment     2  
Segment Reporting Information [Line Items]        
Total revenues $ 27,712 $ 18,356 $ 53,737 $ 36,800
Earnings from operations 2,018 643 2,206 1,328
Operating Segments        
Segment Reporting Information [Line Items]        
Total revenues 27,712   53,737  
Eliminations        
Segment Reporting Information [Line Items]        
Total revenues (3,120) (2,593) (6,034) (5,078)
Managed Care        
Segment Reporting Information [Line Items]        
Total revenues 26,740 17,546 51,776 35,268
Earnings from operations 1,909 587 2,126 1,202
Managed Care | Operating Segments        
Segment Reporting Information [Line Items]        
Total revenues 26,623 17,509 51,559 35,196
Managed Care | Eliminations        
Segment Reporting Information [Line Items]        
Total revenues 117 37 217 72
Specialty Services        
Segment Reporting Information [Line Items]        
Total revenues 4,092 3,403 7,995 6,610
Earnings from operations 109 56 80 126
Specialty Services | Operating Segments        
Segment Reporting Information [Line Items]        
Total revenues 1,089 847 2,178 1,604
Specialty Services | Eliminations        
Segment Reporting Information [Line Items]        
Total revenues $ 3,003 $ 2,556 $ 5,817 $ 5,006