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Accumulated Other Comprehensive Loss
 3 Months Ended
Mar. 31, 2012
Accumulated Other Comprehensice Loss [Abstract]  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]
Accumulated Other Comprehensive Loss.
Accumulated other comprehensive loss consists of the following:
  
March 31, 2012
 
December 31, 2011
 
(in millions)
Post-employment benefits, net of tax
$
(406
)
 
$
(415
)
Hedge instruments, net of tax
(66
)
 
(80
)
Translation adjustments and other, net of tax
(276
)
 
(360
)
 
$
(748
)
 
$
(855
)