XML 123 R34.htm IDEA: XBRL DOCUMENT v2.4.0.6
Valuation and Qualifying Accounts
 12 Months Ended
Dec. 31, 2011
Valuation and Qualifying Accounts [Abstract]  
VALUATION AND QUALIFYING ACCOUNTS

VALUATION AND QUALIFYING ACCOUNTS

 

                                         

Valuation and qualifying accounts deducted

from the related asset accounts

   Balance at
beginning
of period		     Translation
adjustment		     Charged to
costs and
expenses		     Additions/
(Deductions)		     Balance
at end of
period		  
    (Currency — millions of U.S. dollars)  

2011

                                        

Inventories

     50               103       (93 )      60  

Accounts Receivable

     17               1       (3 )      15  

Deferred Tax Assets

     1,396       (11 )      138       (9 )      1,514  
           

2010

                                        

Inventories

     50               67       (67 )      50  

Accounts Receivable

     19               1       (3 )      17  

Deferred Tax Assets

     1,337       (13 )      81       (9 )      1,396  
           

2009

                                        

Inventories

     72               102       (124 )      50  

Accounts Receivable

     25               2       (8 )      19  

Deferred Tax Assets

     1,283       6       79       (31 )      1,337