Determination of Fair Values	12 Months Ended
Dec. 31, 2019
Notes to Consolidated Financial Statements [Abstract]
Note 4 - Determination of Fair Values	Note 4 - Determination of Fair Values As part of the accounting policies and disclosures, ICL is required to determine the fair value of both financial and non-financial assets and liabilities. The fair values have been determined for measurement and/or disclosure purposes based on the methods described below. Further information about the assumptions made in determining the fair values is disclosed in the notes specific to that asset or liability. A. Investments in securities The fair value of financial assets classified as fair value through other comprehensive income -investments in equity instruments and as fair value through profit and loss, is determined based on their market price at date of the report. B. Derivatives The fair value of forward contracts on foreign currency is determined by averaging the exchange rate and the appropriate interest coefficient for the period of the transaction and the relevant currency index. The fair value of interest rate swap contracts is determined by discounting the estimated amount of the future cash flows based on the terms and length of period to maturity of each contract, while using market interest rates of similar instruments at the date of measurement. Future contracts on energy and marine shipping prices are presented at fair value based on quotes of the prices of products on an ongoing basis. The reasonableness of the market price is examined by comparing it to quotations by banks. Note 4 - Determination of Fair Values (cont'd) C. Liabilities in respect of debentures The fair value of the liabilities and the debentures is determined for disclosure purposes only and calculated based on the present value of future cash flows in respect of the principal and interest components, discounted at the market rate of interest as at the reporting date. The fair value of marketable debentures is determined based on the stock market prices as at the date of the report. D. Share-based compensation The fair value of employee share options and share appreciation rights is measured using the Black and Scholes model, in accordance with the plan (see Note 20). The model’s assumptions include the share price on the measurement date, exercise price of the instrument, expected volatility (based on the weighted‑average historic volatility), the weighted average expected life of the instruments (based on historical experience and general option‑holder behavior), expected dividends, and the risk-free interest rate (based on government debentures). E. Property, plant and equipment of the subsidiaries Dead Sea Works, Dead Sea Bromine and Dead Sea Magnesium in Israel The fair value of property, plant and equipment, of the subsidiaries Dead Sea Works, Dead Sea Bromine and Dead Sea Magnesium (hereinafter - the Subsidiaries) was valuated based on the Replacement Cost Methodology under IFRS. This evaluation was performed mainly for the Subsidiaries’ financial statements of 2016 and onward, which serve as a basis for the mineral based financial reports prepared pursuant to the provisions of the Taxation of Natural Resources Law. There is no resulting change in ICL's consolidated financial statements. For further information, see Note 19.

Note 4 - Determination of Fair Values

As part of the accounting policies and disclosures, ICL is required to determine the fair value of both financial and non-financial assets and liabilities. The fair values have been determined for measurement and/or disclosure purposes based on the methods described below. Further information about the assumptions made in determining the fair values is disclosed in the notes specific to that asset or liability.

A. Investments in securities

The fair value of financial assets classified as fair value through other comprehensive income -investments in equity instruments and as fair value through profit and loss, is determined based on their market price at date of the report.

B. Derivatives

The fair value of forward contracts on foreign currency is determined by averaging the exchange rate and the appropriate interest coefficient for the period of the transaction and the relevant currency index. The fair value of interest rate swap contracts is determined by discounting the estimated amount of the future cash flows based on the terms and length of period to maturity of each contract, while using market interest rates of similar instruments at the date of measurement.

Future contracts on energy and marine shipping prices are presented at fair value based on quotes of the prices of products on an ongoing basis. The reasonableness of the market price is examined by comparing it to quotations by banks.

Note 4 - Determination of Fair Values (cont'd)

C. Liabilities in respect of debentures

The fair value of the liabilities and the debentures is determined for disclosure purposes only and calculated based on the present value of future cash flows in respect of the principal and interest components, discounted at the market rate of interest as at the reporting date. The fair value of marketable debentures is determined based on the stock market prices as at the date of the report.

D. Share-based compensation

The fair value of employee share options and share appreciation rights is measured using the Black and Scholes model, in accordance with the plan (see Note 20). The model’s assumptions include the share price on the measurement date, exercise price of the instrument, expected volatility (based on the weighted‑average historic volatility), the weighted average expected life of the instruments (based on historical experience and general option‑holder behavior), expected dividends, and the risk-free interest rate (based on government debentures).

E. Property, plant and equipment of the subsidiaries Dead Sea Works, Dead Sea Bromine and Dead Sea Magnesium in Israel

The fair value of property, plant and equipment, of the subsidiaries Dead Sea Works, Dead Sea Bromine and Dead Sea Magnesium (hereinafter - the Subsidiaries) was valuated based on the Replacement Cost Methodology under IFRS. This evaluation was performed mainly for the Subsidiaries’ financial statements of 2016 and onward, which serve as a basis for the mineral based financial reports prepared pursuant to the provisions of the Taxation of Natural Resources Law. There is no resulting change in ICL's consolidated financial statements. For further information, see Note 19.