Interest expense (Tables)

12 Months Ended

Dec. 31, 2018

Borrowing costs [abstract]

Disclosure of interest expense

FOR THE YEAR ENDED DECEMBER 31	2018		2017
Interest expense on long-term debt	(918	)	(898	)
Interest expense on other debt	(133	)	(101	)
Capitalized interest	51		44
Total interest expense	(1,000	)	(955	)