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Collaborative Arrangements - AstraZeneca PLC - Narrative (Details) - Lynparza - USD ($) $ in Millions	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2022
Other Intangible Assets | Licenses and Other
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Finite-lived intangible assets	$ 1,400
AstraZeneca | Collaborative Arrangement, Transaction with Party to Collaborative Arrangement
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Probable contingent payments			$ 600
Liabilities			$ 600
Eligible future contingent sales-based milestone payments (up to)	2,100
Regulatory milestone payments	245	$ 105
Eligible future contingent regulatory milestone payments (up to)	$ 650

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