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Collaborative Arrangements - Daiicho Sankyo (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2024 | Dec. 31, 2023 | Mar. 31, 2023
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |
Selling, general and administrative | $ 2,483 |  | $ 2,479
Research and development | 3,992 |  | 4,276
Accrued and other current liabilities | 14,102 | $ 15,766 |
Daiichi Sankyo | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement |  |  |
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] |  |  |
Selling, general and administrative | 3 |  | 0
Research and development | 69 | 5,500 | $ 0
Accrued and other current liabilities | 817 | 800 |
Other noncurrent liabilities | $ 750 | $ 750 |

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