XML 118 R102.htm IDEA: XBRL DOCUMENT v3.10.0.1
SHORT-TERM BORROWINGS - Movement in Borrowing Programs (Details)
$ in Millions, $ in Millions
 12 Months Ended
Dec. 31, 2018
CAD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
CAD ($)
Dec. 31, 2017
USD ($)
Disclosure of detailed information about borrowings [line items]        
Short-term borrowings, beginning balance $ 1,585      
Net proceeds (repayments) from current borrowings 508   $ 858  
Gain on foreign exchange (136)   107  
Short-term borrowings, ending balance 2,255   1,585  
Accounts receivable securitization program        
Disclosure of detailed information about borrowings [line items]        
Short-term borrowings, beginning balance 650   800  
Net proceeds (repayments) from current borrowings 0   (150)  
Short-term borrowings, ending balance 650   650  
US commercial paper        
Disclosure of detailed information about borrowings [line items]        
Short-term borrowings, beginning balance $ 935 $ 746 $ 0 $ 0
Exchange rate on current borrowings 1.25 1.25 0.00 0.00
Net proceeds (repayments) from current borrowings $ 508 $ 404 $ 1,008 $ 737
Exchange rate on proceeds from current borrowings, net 1.26 1.26 1.37 1.37
Discount on issuance $ 36 $ 27 $ 12 $ 9
Exchange rate on discounts on issuance of current borrowings 1.33 1.33 1.33 1.33
Gain on foreign exchange $ 126   $ (85)  
Exchange rate on current borrowings 1.36 1.36 1.25 1.25
Short-term borrowings, ending balance $ 1,605 $ 1,178 $ 935 $ 746