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Income Taxes (Details) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2011
Jan. 01, 2011
Jan. 02, 2010
Income (loss) from continuing operations before income taxes      
U.S. $ 137 $ (63) $ (229)
Non-U.S. 200 149 80
Income (loss) from continuing operations before income taxes $ 337 $ 86 $ (149)