v2.4.0.6

Restructuring Charges - Restructuring Cost by Segment (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring related costs | $ 12 | $ 32 | $ 53
HPMS [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring related costs | (1) | 2 |
SP [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring related costs | 3 | 2 | 4
Manufacturing Operations [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring related costs | 3 | 4 | 23
Corporate and Other [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring related costs | 7 | 24 | 27
Divested Home activities [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring related costs |  |  | $ (1)

X
- Definition Amount charged against earnings in the period not processed via the restructuring reserve though directly charged to operating income. + References No definition available. + Details
Name: | nxpi_RestructuringChargesDirectlyChargedToOperatingIncome
Namespace Prefix: | nxpi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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