Goodwill and Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2019

Intangible assets and goodwill [abstract]

Table of Goodwill and Intangible Assets

										Amortization
	Cost as of December 31, 2018		Gain of control over subsidiaries		Additions		Disposals (*)			Accumulated as of December 31, 2018		Gain of control over subsidiaries		Disposals (*)			For the period		Accumulated as of December 31, 2019		Carrying amount as of December 31, 2019
Software licenses		1,765,499		3,068		307,251		(340,090	)		790,289		1,112		(340,090	)		504,352		955,663		780,065
Total		1,765,499		3,068		307,251		(340,090	)		790,289		1,112		(340,090	)		504,352		955,663		780,065

											Amortization
	Cost as of December 31, 2017		Loss of control over subsidiary			Additions		Disposals (*)			Accumulated as of December 31, 2017		Disposals (*)			For the period		Loss of control over subsidiary			Accumulated as of December 31, 2018		Carrying amount as of December 31, 2018
Software licenses		1,868,501		(3,517	)		309,889		(409,374	)		967,441		(409,374	)		233,184		(962	)		790,289		975,210
Goodwill		9,853		(9,853	)		—		—			—		—			—		—			—		—
Total		1,878,354		(13,370	)		309,889		(409,374	)		967,441		(409,374	)		233,184		(962	)		790,289		975,210

(*) Includes write-off of fully amortized items.