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Company Transformation (Details 1) (USD $)
In Millions
3 Months Ended 6 Months Ended
Jun. 30, 2011
Jun. 30, 2010
Jun. 30, 2011
Jun. 30, 2010
Roll Forward of Transformational Accrual        
Transformation Accrual -12/31     $ 2  
Transformation costs 62 0 147 0
Cash payments     (61)  
Asset impairments 0   (55)  
Transformation Accrual - 6/30 33   33  
Company Transformation (Textuals) [Abstract]        
Transformation costs 62 0 147 0
Additional non cash impairment charges     55  
Estimated transformation cost     $ 500