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v3.25.1

Significant Accounting Policies - Disaggregation of Revenue (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2025 | Mar. 31, 2024
Disaggregation of Revenue [Line Items] |  |
Revenues | $ 94,068 | $ 87,983
Net investment income | 520 | 454
Total revenues | 94,588 | 88,437
Pharmacy |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 52,507 | 48,397
Front Store |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 5,243 | 5,370
Premiums |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 32,820 | 30,391
Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 3,498 | 3,825
Health Care Benefits |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 34,405 | 31,865
Net investment income | 387 | 353
Health Services |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 38,096 | 36,466
Net investment income | 14 | 0
Pharmacy & Consumer Wellness |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 21,553 | 19,638
Net investment income | 0 | 0
Corporate/ Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 14 | 14
Net investment income | 119 | 101
Operating Segments | Health Care Benefits |  |
Disaggregation of Revenue [Line Items] |  |
Net investment income | 387 | 353
Total revenues | 34,810 | 32,236
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 | 32,808 | 30,379
Operating Segments | Health Care Benefits | Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 1,615 | 1,504
Operating Segments | Health Services |  |
Disaggregation of Revenue [Line Items] |  |
Net investment income | 14 | 0
Total revenues | 43,462 | 40,285
Operating Segments | Health Services | Pharmacy network |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 23,114 | 20,464
Operating Segments | Health Services | Mail & specialty |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 18,068 | 17,262
Operating Segments | Health Services | Other |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | 2,266 | 2,559
Operating Segments | Health Services | Pharmacy |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 41,182 | 37,726
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 | 2,266 | 2,559
Operating Segments | Pharmacy & Consumer Wellness |  |
Disaggregation of Revenue [Line Items] |  |
Net investment income | 0 | 0
Total revenues | 31,912 | 28,725
Operating Segments | Pharmacy & Consumer Wellness | Pharmacy |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 26,076 | 22,784
Operating Segments | Pharmacy & Consumer Wellness | Front Store |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 5,243 | 5,370
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 | 593 | 571
Corporate/ Other | Corporate/ Other |  |
Disaggregation of Revenue [Line Items] |  |
Net investment income | 119 | 101
Total revenues | 133 | 115
Corporate/ Other | Corporate/ Other | Pharmacy |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0 | 0
Corporate/ Other | Corporate/ Other | Front Store |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 0 | 0
Corporate/ Other | Corporate/ Other | Premiums |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 12 | 12
Corporate/ Other | Corporate/ Other | Other |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | 2 | 2
Intersegment Eliminations |  |
Disaggregation of Revenue [Line Items] |  |
Net investment income | 0 | 0
Total revenues | (15,729) | (12,924)
Intersegment Eliminations | Pharmacy |  |
Disaggregation of Revenue [Line Items] |  |
Revenues | (14,751) | (12,113)
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 | (978) | (811)
Intersegment Eliminations | Health Care Benefits |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | (18) | (18)
Intersegment Eliminations | Health Services |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | (5,352) | (3,819)
Intersegment Eliminations | Pharmacy & Consumer Wellness |  |
Disaggregation of Revenue [Line Items] |  |
Total revenues | $ (10,359) | $ (9,087)

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