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Acquisition - Purchase Price Preliminary Allocations (Details) $ in Millions	Oct. 03, 2017 USD ($)
Business Combinations [Abstract]
Cash and cash equivalents	$ 652
Indefinite-lived intangible assets - IPR&D	8,950
Outlicense acquired	91
Deferred income taxes	(1,606)
Other assets acquired (liabilities assumed), net	81
Total identifiable net assets	8,168
Goodwill	2,987
Total consideration transferred	$ 11,155

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

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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