v3.6.0.2

Postretirement Benefit Plans - Summary of PME Multi-Employer Plan (Parenthetical) (Detail)	12 Months Ended
	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: