ACCOUNTING POLICIES (Tables)

12 Months Ended

Dec. 31, 2019

Disclosure of significant accounting policies [Abstract]

Disclosure of detailed information about property, plant and equipment

Depreciation is calculated using the straight-line method to amortize the cost of each asset to its residual value over its estimated useful life as follows:

Land	No depreciation
Buildings and improvements	10-50 years
Production equipment	5-40 years
Vehicles, furniture and fixtures and other equipment	3-20 years

	Year ended December 31, 2019
	Land		Buildings and improvements		Production equipment		Vehicles, furniture and fixtures		Work in progress		Spare parts		Right-of-use assets		Total
Values at the beginning of the year
Cost	587,174		3,303,174		6,748,644		264,782		617,950		124,220		55,288		11,701,232
Accumulated depreciation	—		(1,520,976	)	(4,126,060	)	(217,394	)	—		(13,275	)	(5,918	)	(5,883,623	)
Net book value at January 1, 2019	587,174		1,782,198		2,622,584		47,388		617,950		110,945		49,370		5,817,609
Opening net book value	587,174		1,782,198		2,622,584		47,388		617,950		110,945		49,370		5,817,609
Effect of initial recognition under IFRS 16	—		—		—		—		—		—		280,493		280,493
Translation differences	(596	)	(16,174	)	(9,959	)	(316	)	(1,716	)	(1,089	)	(1,263	)	(31,113	)
Additions	7,531		9,367		2,063		4,821		923,599		38,476		40,864		1,026,721
Capitalized borrowing costs	—		—		—		—		16,085		—		—		16,085
Disposals / Consumptions	—		(750	)	(117	)	(1,204	)	(2,988	)	(21,489	)	(18,901	)	(45,449	)
Transfers	326		154,544		264,122		14,843		(433,582	)	(50	)	—		3,125
Depreciation charge	—		(135,163	)	(324,112	)	(15,167	)	—		(6,421	)	(44,105	)	(524,968	)
Closing net book value	594,435		1,794,022		2,554,581		50,365		1,119,348		120,372		306,458		6,539,581
Values at the end of the year
Cost	594,435		3,412,904		6,931,970		268,398		1,119,348		140,028		355,928		12,823,011
Accumulated depreciation	—		(1,618,882	)	(4,377,389	)	(218,033	)	—		(19,656	)	(49,470	)	(6,283,430	)
Net book value at December 31, 2019	594,435		1,794,022		2,554,581		50,365		1,119,348		120,372		306,458		6,539,581

	Year ended December 31, 2018
	Land		Buildings and improvements		Production equipment		Vehicles, furniture and fixtures		Work in progress		Spare parts		Right-of-use assets	Total
Values at the beginning of the year
Cost	562,042		2,096,959		4,927,478		151,883		456,021		113,188		—	8,307,571
Accumulated depreciation	—		(563,523	)	(2,286,828	)	(104,303	)	—		(3,164	)	—	(2,957,818	)
Net book value at January 1, 2018	562,042		1,533,436		2,640,650		47,580		456,021		110,024		—	5,349,753
Opening net book value	562,042		1,533,436		2,640,650		47,580		456,021		110,024		—	5,349,753
Effect of initial inflation adjustment (Note 4 (cc))	19,646		434,683		282,577		5,698		25,568		19,858		—	788,030
Translation differences	(2,217	)	(140,879	)	(124,066	)	(5,102	)	(29,005	)	(10,836	)	—	(312,105	)
Additions	1,888		4,083		3,647		3,569		446,002		23,880		—	483,069
Capitalized borrowing costs	—		—		—		—		7,368		—		—	7,368
Disposals / Consumptions	—		(93	)	(2,186	)	(1,236	)	(3,563	)	(24,470	)	—	(31,548	)
Transfers	5,815		80,197		187,284		11,726		(284,441	)	2,543		—	3,124
Depreciation charge	—		(129,229	)	(315,952	)	(14,847	)	—		(10,055	)	—	(470,083	)
Closing net book value	587,174		1,782,198		2,671,954		47,388		617,950		110,945			5,817,609
Values at the end of the year
Cost	587,174		3,303,174		6,803,932		264,782		617,950		124,220		—	11,701,232
Accumulated depreciation	—		(1,520,976	)	(4,131,978	)	(217,394	)	—		(13,275	)	—	(5,883,623	)
Net book value at December 31, 2018	587,174		1,782,198		2,671,954		47,388		617,950		110,945		—	5,817,609