Equity Accounted Investees and Joint Operations (Schedule of Composition of Investments) (Details) - ILS (₪) ₪ in Millions	Dec. 31, 2020	Dec. 31, 2019
Investments in equity accounted investees:
Purchase of share capital	₪ 160	₪ 157
Share in losses of equity accounted investees	(18)	(4)
Unrealized earnings and other	(11)	(3)
Investments in equity accounted investees	₪ 131	₪ 150

The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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