Inventories, Net - Additional Information (Detail) - USD ($) $ in Millions |
Dec. 31, 2018 |
Dec. 31, 2017 |
|---|---|---|
| Inventory Disclosure [Abstract] | ||
| Portion of finished goods stored at customer locations under consignment | $ 52 | $ 69 |
| Allowance for obsolescence | $ 111 | $ 107 |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Amount of valuation reserve for inventory. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Gross amount of inventory owned by the entity but in the hands of a customer, typically a reseller. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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