Merck & Co. Segmentwise Revenues
Segmentwise Revenue of Merck and Co. 2015-2021
Amounts are in $millions.
| Year | Pharmaceutical | Animal Health | Other | Total |
| 2021 | $42,754 | $5,568 | $382 | $48,704 |
| 2020 | $36,610 | $4,703 | $205 | $41,518 |
| 2019 | $34,100 | $4,393 | $628 | $39,121 |
| 2018 | $37,689 | $4,212 | $393 | $ 42,294 |
| 2017 | $35,390 | $3,875 | $857 | $ 40,122 |
| 2016 | $35,151 | $2,287 | $1,178 | $ 39,807 |
| 2015 | $34,782 | $3,331 | $1,385 | $39,498 |
2021: The operations of Merck & Co are divided into two main segments including pharmaceutical and human health. The pharmaceutical segment includes human health pharmaceutical and vaccine products. In 2021, the company generated $42,754 million from the pharmaceutical segment compared to $36,610 million in 2020. Its net sales from the animal segment were $5,568 million in 2021 compared to $4,703 million in 2020. In 2021, a substantial part of the company's growth was driven by its oncology portfolio and mainly Keytruda, which accounted for $17.2 billion of the company's sales in 2021 compared to $14.4 billion in 2020.