10 Other financial assets (XLS:) Download millions of € Dec. 31, 2018 Dec. 31, 2017 Total Of which: current Total Of which: current Originated loans and receivables 3,133 2,684 3,507 3,015 Derivative financial assets 870 151 1,317 306 Equity instruments – measured at fair value through profit or loss 0 0 n. a. n. a. Equity instruments – measured at fair value through other comprehensive income 324 0 n. a. n. a. Debt instruments – measured at fair value through profit or loss 95 6 n. a. n. a. Debt instruments – measured at fair value through other comprehensive income 0 0 n. a. n. a. Other 10 6 0 0 Available-for-sale financial assets n. a. n. a. 4,216 8 Held-to-maturity investments n. a. n. a. 5 0 4,432 2,847 9,045 3,329 Current and non-current other financial assets decreased by EUR 4.6 billion, due in particular to the transfer as of March 23, 2018 of the 12-percent stake in BT, which was worth EUR 3.1 billion at the time, to the Group’s own trust, Deutsche Telekom Trust e.V., as plan assets. Since then, the shares in BT have served to cover pension entitlements. The impairment loss on the exchange-traded stake in BT – which was recognized in other comprehensive income for the period from January 1, 2018 until the date of transfer – reduced the carrying amount by EUR 0.7 billion. Negative effects from the remeasurement of derivative financial instruments as of the reporting date, among other factors, also reduced the carrying amount of other financial assets. For information on allowances and the credit ratings of originated loans and receivables, please refer to Note 40 “Financial instruments and risk management”. Receivables of EUR 498 million (December 31, 2017: EUR 504 million) were used in connection with collateral agreements as surety for potential credit risks arising from derivative transactions.