Provisions (Tables)

12 Months Ended

Dec. 31, 2018

Other Provisions, Contingent Liabilities And Contingent Assets [Abstract]

Disclosure of other provisions

FOR THE YEAR ENDED DECEMBER 31	NOTE	AROs		Other (1)		Total
January 1, 2018		170		158		328
Additions		38		47		85
Usage		(4	)	(29	)	(33	)
Reversals		(5	)	(8	)	(13	)
Acquired through business combinations		—		4		4
December 31, 2018		199		172		371
Current	20	16		50		66
Non-current	25	183		122		305
December 31, 2018		199		172		371

(1)Other includes environmental, legal, regulatory and vacant space provisions.