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v3.23.1

Segment Reporting - Reconciliation of Financial Measures of Segments to Consolidated Totals (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2023 | Mar. 31, 2022
Segment Reporting Information [Line Items] |  |
Revenues from external customers | $ 84,944 | $ 76,658
Net investment income (loss) | 334 | 168
Total revenues | 85,278 | 76,826
Adjusted operating income (loss) | 4,370 | 4,607
Operating Segments | Health Care Benefits |  |
Segment Reporting Information [Line Items] |  |
Revenues from external customers | 25,692 | 22,985
Net investment income (loss) | 164 | 89
Total revenues | 25,877 | 23,094
Adjusted operating income (loss) | 1,824 | 1,861
Operating Segments | Health Services |  |
Segment Reporting Information [Line Items] |  |
Revenues from external customers | 40,811 | 36,311
Net investment income (loss) | 0 | 0
Total revenues | 44,591 | 39,615
Adjusted operating income (loss) | 1,680 | 1,471
Copayments | 4,100 | 3,800
Operating Segments | Pharmacy & Consumer Wellness |  |
Segment Reporting Information [Line Items] |  |
Revenues from external customers | 18,426 | 17,331
Net investment income (loss) | (3) | (16)
Total revenues | 27,922 | 25,898
Adjusted operating income (loss) | 1,134 | 1,573
Corporate/ Other |  |
Segment Reporting Information [Line Items] |  |
Revenues from external customers | 15 | 31
Net investment income (loss) | 173 | 95
Total revenues | 188 | 126
Adjusted operating income (loss) | (268) | (298)
Intersegment Eliminations |  |
Segment Reporting Information [Line Items] |  |
Intersegment revenues | (13,300) | (11,907)
Net investment income (loss) | 0 | 0
Total revenues | (13,300) | (11,907)
Adjusted operating income (loss) | 0 | 0
Intersegment Eliminations | Health Care Benefits |  |
Segment Reporting Information [Line Items] |  |
Intersegment revenues | 21 | 20
Intersegment Eliminations | Health Services |  |
Segment Reporting Information [Line Items] |  |
Intersegment revenues | 3,780 | 3,304
Intersegment Eliminations | Pharmacy & Consumer Wellness |  |
Segment Reporting Information [Line Items] |  |
Intersegment revenues | $ 9,499 | $ 8,583

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