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v3.23.1

Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Disaggregation of Revenue [Line Items] |  |
Revenues | $ 84,944 | $ 76,658
Net investment income (loss) | 334 | 168
Total revenues | 85,278 | 76,826
Pharmacy |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 52,500 | 47,052
Front Store |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 5,597 | 5,313
Premiums |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 24,352 | 21,631
Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 2,495 | 2,662
Operating Segments | Health Care Benefits |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 25,692 | 22,985
Net investment income (loss) | 164 | 89
Total revenues | 25,877 | 23,094
Operating Segments | Health Care Benefits | Pharmacy |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0 | 0
Operating Segments | Health Care Benefits | Front Store |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0 | 0
Operating Segments | Health Care Benefits | Premiums |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 24,339 | 21,614
Operating Segments | Health Care Benefits | Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 1,374 | 1,391
Operating Segments | Health Services |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 40,811 | 36,311
Net investment income (loss) | 0 | 0
Total revenues | 44,591 | 39,615
Operating Segments | Health Services | Pharmacy network |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 27,592 | 24,128
Operating Segments | Health Services | Mail & specialty |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 16,145 | 14,668
Operating Segments | Health Services | Other |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 854 | 819
Operating Segments | Health Services | Pharmacy |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 43,737 | 38,796
Operating Segments | Health Services | Front Store |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0 | 0
Operating Segments | Health Services | Premiums |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0 | 0
Operating Segments | Health Services | Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 854 | 819
Operating Segments | Pharmacy & Consumer Wellness |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 18,426 | 17,331
Net investment income (loss) | (3) | (16)
Total revenues | 27,922 | 25,898
Operating Segments | Pharmacy & Consumer Wellness | Pharmacy |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 21,495 | 19,532
Operating Segments | Pharmacy & Consumer Wellness | Front Store |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 5,597 | 5,313
Operating Segments | Pharmacy & Consumer Wellness | Premiums |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0 | 0
Operating Segments | Pharmacy & Consumer Wellness | Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 833 | 1,069
Corporate/ Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 15 | 31
Net investment income (loss) | 173 | 95
Total revenues | 188 | 126
Corporate/ Other | Pharmacy |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0 | 0
Corporate/ Other | Front Store |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0 | 0
Corporate/ Other | Premiums |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 13 | 17
Corporate/ Other | Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 2 | 14
Intersegment Eliminations |  |
Disaggregation of Revenue [Line Items] |  |
Net investment income (loss) | 0 | 0
Total revenues | (13,300) | (11,907)
Intersegment Eliminations | Pharmacy |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | (12,732) | (11,276)
Intersegment Eliminations | Front Store |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0 | 0
Intersegment Eliminations | Premiums |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0 | 0
Intersegment Eliminations | Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | $ (568) | $ (631)

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