3. Depreciation, amortisation and impairments (in millions of euros)20162015Depreciation of property, plant and equipment270286Depreciation of investment property98Amortisation of intangible assets4036Total depreciation and amortisation319330Impairment (and reversal of impairments) of property, plant and equipment24-2Impairment investment property22Impairment intangible assets- - Total (reversal of) impairment losses26- Total345330For disclosure on impairment of property, plant and equipement refer to note 11.