v2.4.0.6
Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
In Millions, except Share data, unless otherwise specified
Mar. 31, 2012
Dec. 31, 2011
Condensed Consolidated Balance Sheets [Abstract]    
Accounts receivable, allowances $ 737 $ 802
Series preferred stock, par value $ 0.1 $ 0.1
Series preferred stock, shares issued 0 0
Common stock, par value $ 0.1 $ 0.1
Common stock, shares issued 2,967,610,119 2,967,610,119