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Note 18 - Intangible assets (Tables)
12 Months Ended
Dec. 31, 2018
Intangible Assets and Goodwill Abstract  
Goodwill. Breakdown by CGU and Changes of the year
Goodwill. Breakdown by CGU and Changes of the year (Millions of euros)
The United StatesTurkeyMexicoColombiaChileOtherTotal
Balance as of December 31, 20155,32872760217662206,915
Additions -----88
Exchange difference175(101)(79)146-15
Other-(1)----(1)
Balance as of December 31, 20165,50362452319168286,937
Additions --24---24
Exchange difference(666)(115)(44)(22)(3)(1)(851)
Impairment-----(4)(4)
Other--(10)-(33)-(43)
Balance as of December 31, 20174,83750949316832236,062
Exchange difference229(127)26(7)(3)-118
Balance as of December 31, 20185,06638251916129236,180
Impairment Test Hypotheses CGU Goodwill In The United States
Impairment test hypotheses CGU Goodwill in the United States
201820172016
Discount rate10.5%10.0%10.0%
Sustainable growth rate4.0%4.0%4.0%
Sensitivity Analysis For Main Hypotheses USA
Sensitivity analysis for main hypotheses - USA (Millions of euros)
Impact of an increase of 50 basis points (*)Impact of a decrease of 50 basis points (*)
Discount rate(1,009)1,176
Sustainable growth rate526(451)

(*) Based on historical changes, the use of 50 basis points to calculate the sensitivity analysis would be a reasonable variation with respect to the observed variations over the last five years.

Impairment Test Hypotheses CGU Goodwill In Turkey
Impairment test assumptions CGU Goodwill in Turkey
201820172016
Discount rate24.3%18.0%17.7%
Sustainable growth rate7.0%7.0%7.0%
Sensitivity Analysis For Main Hypotheses Turkey
Sensitivity analysis for main assumptions - Turkey (Millions of euros)
Impact of an increase of 50 basis points (*)Impact of a decrease of 50 basis points (*)
Discount rate(149)158
Sustainable growth rate40(37)

(*) Based on historical changes, the use of 50 basis points to calculate the sensitivity analysis would be a reasonable variation with respect to the observed variations over the last five years.

Table of other intangible assets explanatory
Other intangible assets (Millions of euros)
201820172016
Computer software acquisition expenses1,6051,6821,877
Other intangible assets with an infinite useful life111212
Other intangible assets with a definite useful life518708960
Total2,1342,4022,849
Other Intangible Assets Changes Over the Period
Other Intangible Assets (Millions of euros)
Notes201820172016
Balance at the beginning2,4022,8493,137
Additions552564645
Amortization in the year45(614)(694)(735)
Exchange differences and other (123)(305)(196)
Impairment(83)(12)(3)
Balance at the end2,1342,4022,849