XML 70 R18.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
OTHER LIABILITIES (Tables)
12 Months Ended
Dec. 31, 2019
OTHER LIABILITIES  
Schedule of other liabilities

​

​

​

​

​

​

December 31 (millions of dollars)

    

2019

    

2018

​

​

​

​

​

Regulatory liabilities

 

29

 

27

Other liabilities

 

7

 

2

​

 

36

 

29