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Other Assets Impairments, Restructuring and Other Items - Additional Information (Detail) $ in Millions | 12 Months Ended
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Dec. 31, 2018 USD ($) Positions | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($)
Restructuring and Impairment Costs [Line Items] |  |  |
Impairments of property, plant and equipment | $ 500 | $ 544 | $ 157
Business combination contingent consideration arrangements change in amount of contingent consideration liability | 57 | 154 | 83
Restructuring costs | $ 488 | $ 535 | $ 245
Number of positions eliminated | Positions | 10,300 |  |
Expected revenue from Florida manufacturing plant in 2019 | $ 255 |  |
Recall and inventory reserves cost | 51 |  |
India [Member] |  |  |
Restructuring and Impairment Costs [Line Items] |  |  |
Impairments of property, plant and equipment | 64 |  |
Property, Plant and Equipment [Member] |  |  |
Restructuring and Impairment Costs [Line Items] |  |  |
Impairments of property, plant and equipment | 245 |  |
Property, Plant and Equipment [Member] | Japan [Member] |  |  |
Restructuring and Impairment Costs [Line Items] |  |  |
Impairments of property, plant and equipment | 180 |  |
Property, Plant and Equipment [Member] | China [Member] |  |  |
Restructuring and Impairment Costs [Line Items] |  |  |
Impairments of property, plant and equipment | 28 |  |
Restructuring Cost [Member] |  |  |
Restructuring and Impairment Costs [Line Items] |  |  |
Impairments of property, plant and equipment | 155 |  |
Restructuring Cost [Member] | Israel [Member] |  |  |
Restructuring and Impairment Costs [Line Items] |  |  |
Impairments of property, plant and equipment | 113 |  |
Restructuring Cost [Member] | Headquarters and Distribution Sites Consolidation in US [Member] |  |  |
Restructuring and Impairment Costs [Line Items] |  |  |
Impairments of property, plant and equipment | 42 |  |
Expenses Related to Bendeka [Member] |  |  |
Restructuring and Impairment Costs [Line Items] |  |  |
Business combination contingent consideration arrangements change in amount of contingent consideration liability | $ 40 |  |

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