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Credit from Banks and Others (Yearly movement in Credit from Banks and Others) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Credit From Banks And Others [Abstract]      
Balance as at January 1 $ 2,660 $ 2,559  
Changes from financing cash flows      
Additions in respect of business combination 171 0  
Receipt of long-term debts 1,230 1,175 $ 657
Repayment of long-term debt (1,120) (1,133) (689)
Repayment of short-term credit (58) (52) (183)
Interest paid (112) (109)  
Receipt (payments) from transaction in derivatives (17) 24  
Total net financing cash flows 94 (95)  
Initial recognition of lease liability 37 80  
Interest expenses 126 120  
Effect of changes in foreign exchange rates (21) 84  
Change in fair value of derivatives (24) (53)  
Other changes 42 (35)  
Balance as at December 31 $ 2,914 $ 2,660 $ 2,559