23 Other non-current assets
| (€ million) | December 31, 2017 | December 31, 2016 | ||||||
| Tax receivables from: | ||||||||
| - Italian tax authorities | ||||||||
| - income tax | 62 | 73 | ||||||
| - interest on tax credits | 64 | 64 | ||||||
| 126 | 137 | |||||||
| - non-Italian tax authorities | 381 | 365 | ||||||
| 507 | 502 | |||||||
| Other receivables: | ||||||||
| - related to divestments | 118 | 222 | ||||||
| - other non-current | 44 | 52 | ||||||
| 162 | 274 | |||||||
| Fair value of derivative financial instruments | 80 | 108 | ||||||
| Other asset | 574 | 464 | ||||||
| 1,323 | 1,348 | |||||||
Receivables from divestments amounting to €118 million (€222 million at December 31, 2016) were net of the accumulated provisions for impairments of €125 million and included the present value of long-term portion of €111 million ($133 million) of the receivable related to the divestment of a 10% stake of the Zohr asset in Egypt finalized in February 2017. The current portion of the receivables is indicated in note 11 — Trade and other receivables. The accumulated provisions for impairments of €125 million related to a receivable deriving from the sale of an asset in Nigeria and included the impairment of the year of € 44 million.
The fair value related to derivative financial instruments is disclosed in note 34 — Derivative financial instruments.
Other non-current assets amounted to €574 million (€464 million at December 31, 2016) included €56 million of deferred costs for take-or-pay gas volumes in connection to the Company’s long-term supply contracts (€113 million at December 31, 2016). The portion that Eni plans to recover within the term of 12 months is indicated in note 15 — Other current assets.
Transactions with related parties are described in note 47 — Transactions with related parties.