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Equity (Reconciliation of the Number of Shares Outstanding) (Details) - shares
shares in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Number of Ordinary shares of Israeli Shekel 1 par value (in millions) [Member]    
Disclosure of classes of share capital [Line Items]    
Balance as at Start of Period 1,305 1,305
Issuance of shares 7 0
Balance as at End of Period 1,312 1,305
Number of Special State share of Israeli Shekel 1 par value [Member]    
Disclosure of classes of share capital [Line Items]    
Balance as at Start of Period 1  
Balance as at End of Period 1 1