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Collaborative Arrangements - Eisai Co., Ltd. (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 | Sep. 30, 2023 | Mar. 31, 2023 | Dec. 31, 2023
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Cost of sales | $ 3,540 |  | $ 3,926 |
Selling, general and administrative | 2,483 |  | 2,479 |
Research and development | 3,992 |  | 4,276 |
Other current assets | 31,445 |  |  | $ 32,168
Accrued and other current liabilities | 14,102 |  |  | 15,766
Eisai |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Amortization of intangible assets |  | $ 81 | 72 |
Eisai | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement |  |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |  |
Revenue from collaborative arrangement | 255 |  | 232 |
Cost of sales | 60 |  | 126 |
Selling, general and administrative | 39 |  | 51 |
Research and development | 8 |  | $ 39 |
Other current assets | 255 |  |  | 226
Accrued and other current liabilities | $ 125 |  |  | $ 125

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