v3.6.0.2

Postretirement Benefit Plans - Summary of PME Multi-Employer Plan (Parenthetical) (Detail) | 12 Months Ended
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Dec. 31, 2016
PME Multi-Employer Plan [Member] |
Multiemployer Plans [Line Items] |
Percentage of total contribution | 5.00%

X
- Definition Employers Contribution Not To Exceed Percentage Of Maximized Contributions + References No definition available. + Details
Name: | nxpi_EmployersContributionNotToExceedPercentageOfMaximizedContributions
Namespace Prefix: | nxpi_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- 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
Name: | us-gaap_MultiemployerPlansLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_MultiemployerPlanTypeAxis=us-gaap_MultiemployerPlansPensionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |