XML 60 R51.htm IDEA: XBRL DOCUMENT v3.23.1
Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disaggregation of Revenue [Line Items]      
Revenues $ 321,629 $ 290,912 $ 267,908
Net investment income (loss) 838 1,199 798
Total revenues 322,467 292,111 268,706
Pharmacy      
Disaggregation of Revenue [Line Items]      
Revenues 205,119 184,619 171,087
Front Store      
Disaggregation of Revenue [Line Items]      
Revenues 22,780 21,315 19,655
Premiums      
Disaggregation of Revenue [Line Items]      
Revenues 85,330 76,132 69,364
Other      
Disaggregation of Revenue [Line Items]      
Revenues 8,400 8,846 7,802
Operating Segments | Health Care Benefits      
Disaggregation of Revenue [Line Items]      
Revenues 90,798 81,457 74,871
Net investment income (loss) 476 586 483
Total revenues 91,350 82,119 75,409
Operating Segments | Health Care Benefits | Pharmacy      
Disaggregation of Revenue [Line Items]      
Revenues 0 0 0
Operating Segments | Health Care Benefits | Front Store      
Disaggregation of Revenue [Line Items]      
Revenues 0 0 0
Operating Segments | Health Care Benefits | Premiums      
Disaggregation of Revenue [Line Items]      
Revenues 85,274 76,064 69,301
Operating Segments | Health Care Benefits | Other      
Disaggregation of Revenue [Line Items]      
Revenues 5,600 5,469 5,625
Operating Segments | Health Services      
Disaggregation of Revenue [Line Items]      
Revenues 157,968 143,912 131,936
Net investment income (loss) 0 0 0
Total revenues 169,576 153,892 141,354
Operating Segments | Health Services | Pharmacy network      
Disaggregation of Revenue [Line Items]      
Total revenues 102,968 96,834 89,740
Operating Segments | Health Services | Mail choice      
Disaggregation of Revenue [Line Items]      
Total revenues 63,825 53,812 49,713
Operating Segments | Health Services | Other      
Disaggregation of Revenue [Line Items]      
Total revenues 2,783 3,246 1,901
Operating Segments | Health Services | Pharmacy      
Disaggregation of Revenue [Line Items]      
Revenues 166,793 150,646 139,453
Operating Segments | Health Services | Front Store      
Disaggregation of Revenue [Line Items]      
Revenues 0 0 0
Operating Segments | Health Services | Premiums      
Disaggregation of Revenue [Line Items]      
Revenues 0 0 0
Operating Segments | Health Services | Other      
Disaggregation of Revenue [Line Items]      
Revenues 2,783 3,246 1,901
Operating Segments | Pharmacy & Consumer Wellness      
Disaggregation of Revenue [Line Items]      
Revenues 72,739 65,418 60,990
Net investment income (loss) (44) 17 0
Total revenues 108,596 101,620 93,579
Operating Segments | Pharmacy & Consumer Wellness | Pharmacy      
Disaggregation of Revenue [Line Items]      
Revenues 83,480 77,886 71,984
Operating Segments | Pharmacy & Consumer Wellness | Front Store      
Disaggregation of Revenue [Line Items]      
Revenues 22,780 21,315 19,655
Operating Segments | Pharmacy & Consumer Wellness | Premiums      
Disaggregation of Revenue [Line Items]      
Revenues 0 0 0
Operating Segments | Pharmacy & Consumer Wellness | Other      
Disaggregation of Revenue [Line Items]      
Revenues 2,380 2,402 1,940
Corporate/ Other      
Disaggregation of Revenue [Line Items]      
Revenues 124 125 111
Net investment income (loss) 406 596 315
Total revenues 530 721 426
Corporate/ Other | Pharmacy      
Disaggregation of Revenue [Line Items]      
Revenues 0 0 0
Corporate/ Other | Front Store      
Disaggregation of Revenue [Line Items]      
Revenues 0 0 0
Corporate/ Other | Premiums      
Disaggregation of Revenue [Line Items]      
Revenues 56 68 63
Corporate/ Other | Other      
Disaggregation of Revenue [Line Items]      
Revenues 68 57 48
Intersegment Eliminations      
Disaggregation of Revenue [Line Items]      
Net investment income (loss) 0 0 0
Total revenues (47,585) (46,241) (42,062)
Intersegment Eliminations | Pharmacy      
Disaggregation of Revenue [Line Items]      
Revenues (45,154) (43,913) (40,350)
Intersegment Eliminations | Front Store      
Disaggregation of Revenue [Line Items]      
Revenues 0 0 0
Intersegment Eliminations | Premiums      
Disaggregation of Revenue [Line Items]      
Revenues 0 0 0
Intersegment Eliminations | Other      
Disaggregation of Revenue [Line Items]      
Revenues $ (2,431) $ (2,328) $ (1,712)