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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $)
In Millions
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Treasury Stock [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Loss [Member]
Balance at Dec. 31, 2010$ 14,546$ 6,016$ 46,841$ (227)$ (37,582)$ (502)
Balance (in shares) at Dec. 31, 2010 3,008 20  
Increase (Decrease) in Stockholders' Equity [Roll Forward]      
Net loss(1,587)   (1,587) 
Other Comprehensive Income, Net of Tax39    39
Total comprehensive loss(1,548)     
Stock Issued During Period, Shares, New Issues 5    
Stock Issued During Period, Value, New Issues 11    
Stock Issued During Period, Shares, Treasury Stock Reissued   (1)  
Stock Issued During Period, Value, Treasury Stock Reissued14 (1)21(17) 
Share-based compensation expense29 29   
Conversion of series 2 to series 1 common shares, Shares (19) (19)  
Conversion of series 2 to series 1 common shares, Value0(38)(168)206  
Balance at Sep. 30, 2011$ 13,041$ 5,989$ 46,701$ 0$ (39,186)$ (463)
Balance (in shares) at Sep. 30, 2011 2,994 0