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Legal Settlements and Loss Contingencies - Additional Information (Detail) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2019
Loss Contingencies [Line Items] |  |  |  |  |
Legal settlements and loss contingencies, expense | $ 13 | $ 646 |  | $ 703 |
Legal settlements, income |  |  | $ 12 |  |
Accrued amount for legal settlements and loss contingencies | 1,588 |  | $ 1,588 |  | $ 1,580
Payments for Legal Settlements |  | $ 85 |  |  |
Opioid Litigation [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Legal settlements and loss contingencies, expense | $ 85 |  |  |  |
Settlement On Account Of Product Liability [Member] | United States [Member] |  |  |  |  |
Loss Contingencies [Line Items] |  |  |  |  |
Restructuring expense and income |  |  | The expense in the second quarter of 2020 was mainly due to the increase of a reserve for certain legal expenses and settlement contributions related to products liability claims in the United States, partially offset by proceeds received following a settlement of the FCPA derivative proceedings in Israel. |  |

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- Definition Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349 + Details
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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. + References No definition available. + Details
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- Definition Amount of loss contingency liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349 + Details
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- Definition The amount of cash paid for the settlement of litigation or for other legal issues during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3536-108585 + Details
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