Business Combinations - Summary of Total Purchase Price (Details) - GRAIL Inc $ in Millions	Aug. 18, 2021 USD ($)
Business Acquisition [Line Items]
Cash	$ 2,862
Fair value of common stock issued	4,975
Fair value of contingent consideration	762
Fair value of previously held investment	1,150
Settlement of preexisting relationships	2
Total purchase price	$ 9,751

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

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The cash outflow associated with the acquisition of business during the period. The cash portion only of the acquisition price.

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