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PARENTHETICAL DATA TO THE CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDER'S EQUITY (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Consolidated Statement of Changes in Stockholders' Equity      
Foreign currency translation, tax $ 24 $ 73 $ 37
Derivative financial instruments      
Gains (losses) deferred, tax 0 1 11
(Gains) losses reclassified to earnings, tax 3 16 28
Retained interests      
Gains (losses) deferred, tax     9
(Gains) losses reclassified to earnings, tax     $ 11