Quarterly report pursuant to Section 13 or 15(d)

Segment Information (Details)

v3.22.1
Segment Information (Details)
$ in Millions
3 Months Ended
Mar. 31, 2022
USD ($)
segment
Mar. 31, 2021
USD ($)
Segment Reporting [Abstract]    
Number of operating segments | segment 2  
Segment Reporting Information [Line Items]    
Total revenues $ 37,185 $ 29,983
Earnings from operations 1,253 1,054
Eliminations    
Segment Reporting Information [Line Items]    
Total revenues (3,451) (2,887)
Managed  Care    
Segment Reporting Information [Line Items]    
Total revenues 34,521 28,603
Earnings from operations 1,237 956
Managed  Care | Operating Segments    
Segment Reporting Information [Line Items]    
Total revenues 34,519 28,602
Managed  Care | Eliminations    
Segment Reporting Information [Line Items]    
Total revenues 2 1
Specialty Services    
Segment Reporting Information [Line Items]    
Total revenues 6,115 4,267
Earnings from operations 16 98
Specialty Services | Operating Segments    
Segment Reporting Information [Line Items]    
Total revenues 2,666 1,381
Specialty Services | Eliminations    
Segment Reporting Information [Line Items]    
Total revenues $ 3,449 $ 2,886