27 Depreciation, amortization and impairment losses The following table provides a breakdown of depreciation, amortization and impairment losses: (XLS:) Download millions of € 2019 2018 2017 a The IFRS 16 “Leases” accounting standard has been applied since January 1, 2019. Prior-year comparatives were not adjusted. For further information, please refer to the section “Initial application of standards, interpretations, and amendments in the financial year.” AMORTIZATION AND IMPAIRMENT OF INTANGIBLE ASSETS 4,806 5,021 6,193 Of which: goodwill impairment losses 0 639 2,071 Of which: amortization of mobile licenses 1,080 1,049 1,038 Of which: impairment losses on mobile licenses 0 19 4 DEPRECIATION AND IMPAIRMENT OF PROPERTY, PLANT AND EQUIPMENT 9,208 8,814 8,393 Of which: impairment losses recognized on property, plant and equipment 319 38 81 DEPRECIATION OF RIGHT-OF-USE ASSETSa 3,649 n.a. n.a. 17,663 13,836 14,586 Impairment losses break down as follows: (XLS:) Download millions of € 2019 2018 2017 INTANGIBLE ASSETS 74 685 2,077 Of which: goodwill from the year-end impairment test 0 639 829 Of which: goodwill in connection with ad hoc impairment testing in the cash-generating unit in the Systems Solutions operating segment n.a. n.a. 1,242 Of which: in connection with ad hoc impairment test in the Romania cash-generating unit 24 n.a. n.a. Of which: FCC licenses 0 0 4 PROPERTY, PLANT AND EQUIPMENT 319 38 81 Of which: in connection with ad hoc impairment testing for Romania in the Romania cash-generating unit 296 0 0 Of which: from the year-end impairment test 0 0 37 393 722 2,158 Depreciation, amortization and impairment losses on intangible assets, property, plant and equipment, and right-of-use assets increased by EUR 3.8 billion year-on-year to EUR 17.7 billion. Of this figure, EUR 3.6 billion was attributable to the depreciation charge on right-of-use assets required to be recognized for the first time in accordance with IFRS 16. In the prior-year period, expenses had been recognized in EBITDA in connection with operating leases. Depreciation of property, plant and equipment and amortization of intangible assets, which in the prior year had included depreciation and amortization on finance lease assets, were EUR 0.5 billion higher than in the prior year, mainly due to the consistently high investment volume in past years. Impairment losses decreased by EUR 0.3 billion compared with the prior year to EUR 0.4 billion in total. In 2019, these included impairment losses of EUR 0.3 billion in particular on property, plant and equipment in the Romania cash-generating unit in the Europe operating segment on account of the impairment test conducted at year-end. Impairment losses recognized in 2018 on goodwill in the Europe operating segment in the national companies in Poland and Romania amounted to EUR 0.6 billion in total. In addition, impairment losses amounting to EUR 35 million had been recognized on property, plant and equipment and intangible assets in 2018 in connection with the sale of the shares in Telekom Albania. For further information, please refer to Note 6 “Intangible assets,” Note 7 “Property, plant and equipment,” and Note 8 “Right-of-use assets – lessee relationships.”