v3.6.0.2

Debt - Summary of Outstanding Long-Term Debt (Parenthetical) (Detail) | Dec. 31, 2016
--- | ---
Fixed-Rate 3.5% Senior Unsecured Notes Maturing in September 2016 [Member] |
Debt Instrument [Line Items] |
Fixed rate on notes | 3.50%
Fixed-Rate 3.75% Senior Unsecured Notes Maturing in June 2018 [Member] |
Debt Instrument [Line Items] |
Fixed rate on notes | 3.75%
Fixed-Rate 4.125% Senior Unsecured Notes Maturing in June 2020 [Member] |
Debt Instrument [Line Items] |
Fixed rate on notes | 4.125%
Fixed-Rate 4.125% Senior Unsecured Notes Maturing in June 2021 [Member] |
Debt Instrument [Line Items] |
Fixed rate on notes | 4.125%
Fixed-Rate 5.75% Senior Unsecured Notes Maturing in February 2021 [Member] |
Debt Instrument [Line Items] |
Fixed rate on notes | 5.75%
Fixed-Rate 5% Senior Secured Notes Maturing in May 2021 [Member] |
Debt Instrument [Line Items] |
Fixed rate on notes | 5.00%
Fixed-Rate 3.875% Senior Unsecured Notes Maturing in September 2022 [Member] |
Debt Instrument [Line Items] |
Fixed rate on notes | 3.875%
Fixed-Rate 6% Senior Secured Notes Maturing in January 2022 [Member] |
Debt Instrument [Line Items] |
Fixed rate on notes | 6.00%
Fixed-Rate 4.625% Senior Unsecured Notes Maturing in June 2022 [Member] |
Debt Instrument [Line Items] |
Fixed rate on notes | 4.625%
Fixed-Rate 5.75% Senior Unsecured Notes Maturing in March 2023 [Member] |
Debt Instrument [Line Items] |
Fixed rate on notes | 5.75%
Fixed-Rate 4.625% Senior Unsecured Notes Maturing in June 2023 [Member] |
Debt Instrument [Line Items] |
Fixed rate on notes | 4.625%
Fixed-Rate 1% Cash Convertible Notes Maturing in December 2019 [Member] |
Debt Instrument [Line Items] |
Fixed rate on notes | 1.00%

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_DebtInstrumentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LongTermDebtPercentageBearingFixedInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nxpi_FixedRateThreePointFivePercentageSeniorUnsecuredNotesMaturingInSeptemberTwoThousandSixteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nxpi_FixedRateThreePointSevenFivePercentageSeniorUnsecuredNotesMaturingInJuneTwoThousandEighteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nxpi_FixedRateFourPointOneTwoFivePercentageSeniorUnsecuredNotesMaturingInJuneTwoThousandTwentyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nxpi_FixedRateFourPointOneTwoFivePercentageSeniorUnsecuredNotesMaturingInJuneTwoThousandTwentyOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nxpi_FixedRateFivePointSevenFivePercentageSeniorUnsecuredNotesMaturingInFebruaryTwoThousandTwentyOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nxpi_FixedRateFivePercentageSeniorSecuredNotesMaturingInMayTwoThousandTwentyOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nxpi_FixedRateThreePointEightSevenFivePercentageSeniorUnsecuredNotesMaturingInSeptemberTwoThousandTwentyTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nxpi_FixedRateSixPercentageSeniorSecuredNotesMaturingInJanuaryTwoThousandTwentyTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nxpi_FixedRateFourPointSixTwoFivePercentageSeniorUnsecuredNotesMaturingInJuneTwoThousandTwentyTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nxpi_FixedRateFivePointSevenFivePercentageSeniorUnsecuredNotesMaturingInMarchTwoThousandTwentyThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nxpi_FixedRateFourPointSixTwoFivePercentageSeniorUnsecuredNotesMaturingInJuneTwoThousandTwentyThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=nxpi_FixedRateOnePercentageCashConvertibleNotesMaturingInDecemberTwoThousandNineteenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |