


Note 23	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.

AROs reflect management’s best estimates of expected future costs to restore current leased premises to their original condition prior to lease inception. Cash outflows associated with our ARO liabilities are generally expected to occur at the restoration dates of the assets to which they relate, which are long-term in nature. The timing and extent of restoration work that will be ultimately required for these sites is uncertain.