XML 87 R65.htm IDEA: XBRL DOCUMENT v2.4.0.6
Investments (Details Textual)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2011
USD ($)
Dec. 31, 2010
USD ($)
Dec. 31, 2009
USD ($)
Dec. 31, 2011
CAD
Dec. 31, 2010
CAD
Jan. 16, 2009
CAD
Investments (Textual) [Abstract]            
Investments in ABCP       125 127  
Restructuring notes in a Master Trust MAV2 - A notes issued under new restructuring plan           102
Restructuring notes in a MAV2- B and C Notes issued under new restructuring plan           9
Tracking notes deemed ineligible for inclusion in the Master Trust           23
Increasing in carrying value of its investment in ABCP in selling, general and administrative expense     9      
Sales to equity method investees $ 76 $ 18 $ 12