Cash and Cash Equivalents (Schedule of Cash and Cash Equivalents) (Details) - ILS (₪) ₪ in Millions	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash and cash equivalents [abstract]
Current balances in banks	₪ 92	₪ 56
Demand deposits	627	950
Cash and cash equivalents	₪ 719	₪ 1,006	₪ 1,202	₪ 527

The amount of cash on hand and demand deposits, along with short-term, highly liquid investments that are readily convertible to known amounts of cash and that are subject to an insignificant risk of changes in value. [Refer: Cash; Cash equivalents]

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