Acquisitions and Other Arrangements - Schedule of Total Consideration (Detail) - Mallinckrodt plc - RECOTHROM and PREVELEAK $ in Millions	Mar. 16, 2018 USD ($)
Business Acquisition [Line Items]
Cash	$ 163
Contingent consideration	21
Total consideration	$ 184

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

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