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Collaborations - BeiGene (Details) - USD ($) $ in Millions |  | 12 Months Ended
--- | --- | ---
Jan. 02, 2020 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Total revenues |  | $ 28,190 | $ 26,323 | $ 25,979
Due from related party |  | 7,268 | 5,563 |
Due from related party |  | 2,602 | 2,388 |
BeiGene |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Research and development arrangement, contract to provide cash and development services, maximum amount | $ 1,250 |  |  |
BeiGene | Related Party |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Due from related party |  | 16 | 6 |
Due from related party |  | 44 | 47 |
BeiGene |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Equity method investment, aggregate cost | $ 2,800 |  |  |
Research and development | BeiGene |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Cost recoveries |  | 109 | 199 | 220
Selling, general and administrative | BeiGene |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Profit and loss share of expenses |  | 40 | 53 | 64
BeiGene | BeiGene |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Total revenues |  | $ 125 | $ 64 | $ 72

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