Investments (Neumora Therapeutics, Inc.) (Details) - Neumora Therapeutics, Inc. - USD ($) $ in Millions		3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2022	Dec. 31, 2021
Net Investment Income [Line Items]
Ownership percentage	25.90%	24.90%	24.90%	25.90%
Equity Method Investment, Aggregate Cost	$ 257
Payments to Acquire Equity Method Investments	100	$ 10
Noncash or Part Noncash Acquisition, Investments Acquired	$ 157
Equity Method Investments, Fair Value Disclosure		382	$ 382	$ 220
Equity method investment, change in carrying value		$ 240	$ 152

Equity method investment, change in carrying value

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This element represents the aggregate cost of investments accounted for under the equity method of accounting.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Fair value portion of investments accounted under the equity method.

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The amount of investments that an Entity acquires in a noncash (or part noncash) acquisition. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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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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No definition available.

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