XML 34 R23.htm IDEA: XBRL DOCUMENT v3.20.2
FINANCIAL CHARGES AND OTHER
 9 Months Ended
Sep. 30, 2020
Other Expense, Nonoperating [Abstract]  
FINANCIAL CHARGES AND OTHER FINANCIAL CHARGES AND OTHER
 Three months endedNine months ended
(unaudited)September 30,September 30,
(millions of dollars)2020201920202019
Interest expense (a)
19 22 59 67 
Net realized loss (gain) related to the interest rate swaps2 — 4 (1)
AFUDC - Equity(3)— (6)(1)
Other income(1)(2)(3)(2)
 17 20 54 63 
(a)Includes amortization of debt issuance costs and discount costs.