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- Definition

Intangible Asset, Measurement Input

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Intangible Asset, Products and Product rights, Measurement Input

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- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of currency on hand as well as demand deposits with banks or financial institutions, acquired at the acquisition date. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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- Definition

Amount of investments in debt and equity securities, including, but not limited to, held-to-maturity, trading and available-for-sale expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

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- Definition

Amount of deferred tax liability attributable to taxable temporary differences assumed at the acquisition date.

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- Definition

Amount of assets, excluding financial assets and goodwill, that lack physical substance, having a projected indefinite period of benefit, acquired at the acquisition date.

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- Definition

The amount of identifiable intangible assets recognized as of the acquisition date.

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- Definition

Amount recognized as of the acquisition date for the identifiable assets acquired in excess of (less than) the aggregate liabilities assumed.

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- Definition

Amount recognized for assets, including goodwill, in excess of (less than) the aggregate liabilities assumed.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Acquisitions, Research Collaborations and Licensing Agreements - Estimated Fair Value of Assets Acquired and Liabilities Assumed (Details) $ in Millions	1 Months Ended
	Nov. 30, 2021	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Nov. 19, 2021 USD ($)
Business Acquisition [Line Items]
Goodwill		$ 21,197	$ 21,204	$ 21,264
Acceleron Pharma Inc.
Business Acquisition [Line Items]
Cash and cash equivalents					$ 340
Investments					285
IPR&D - sotatercept					6,380
Product rights - Reblozyl (12 year useful life)					3,830
Estimated useful life of intangible assets, acquired	12 years
Deferred income tax liabilities, net					(1,814)
Other assets and liabilities, net					82
Total identifiable net assets					9,103
Goodwill					2,411
Consideration transferred					$ 11,514
Acceleron Pharma Inc. \| Measurement Input, Discount Rate
Business Acquisition [Line Items]
Present value discount rate					0.075
Discount rate					0.060