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Income Tax (Details) (Textual) (USD $)
In Millions, except Per Share data, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Income Tax (Textual) [Abstract]      
Netherlands statutory income taxes rate 25.00% 25.50% 25.50%
Tax credits, research $ 159 $ 146 $ 146
Significant losses in countries subject to tax holidays 131 91 123
Effect of the tax benefits on basic earnings per share $ 0.13 $ 0.09 $ 0.00
Maximum Percentage of Tax reduction from Tax holidays 100.00%    
Legal inflationary index 2.05%    
Deferred tax benefit (expense) 19 7  
Largest amount recognized upon settlement with taxing authority greater than 50 percent    
Tax settlements 36    
St Ericsson's [Member]
      
Income Tax (Additional Textual) [Abstract]      
Deferred tax assets on tax loss carryforwards 92    
Equity investments, Ownership percentage 50.00%    
Foreign subsidiaries and corporate joint ventures [Member]
      
Income Tax (Additional Textual) [Abstract]      
Cumulative amount of distributable earnings $ 1,417