XML 42 R109.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Other Income and Expenses, Net - Other Income and Expense, Net (Detail) (USD $) In Millions, unless otherwise specified | 12 Months Ended
--- | ---
Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Component of Operating Other Cost and Expense [Abstract] |  |  |
Other income and expenses, net | $ 95 | $ 91 | $ 109
Research and Development Funding [Member] |  |  |
Component of Operating Other Cost and Expense [Abstract] |  |  |
Other income and expenses, net | 57 | 102 | 128
Phase-out and Start-up Costs [Member] |  |  |
Component of Operating Other Cost and Expense [Abstract] |  |  |
Other income and expenses, net | (4) |  | (8)
Exchange Gain, Net [Member] |  |  |
Component of Operating Other Cost and Expense [Abstract] |  |  |
Other income and expenses, net | 8 | 5 | 8
Patent Costs [Member] |  |  |
Component of Operating Other Cost and Expense [Abstract] |  |  |
Other income and expenses, net | (40) | (20) | (28)
Gain on Sale of Businesses and Non-current Assets [Member] |  |  |
Component of Operating Other Cost and Expense [Abstract] |  |  |
Other income and expenses, net | 83 | 9 | 15
Other, Net [Member] |  |  |
Component of Operating Other Cost and Expense [Abstract] |  |  |
Other income and expenses, net | $ (9) | $ (5) | $ (6)

X
- Definition Other income and expenses, net. + References No definition available. + Details
Name: | stm_OtherIncomeAndExpensesNet
Namespace Prefix: | stm_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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