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Equity (Share-based Payments to Employees, Non-marketable Options, Number of Options Vested) (Details)
$ in Millions
Dec. 31, 2021
USD ($)
₪ / shares
Dec. 31, 2021
USD ($)
$ / shares
Dec. 31, 2020
USD ($)
₪ / shares
Dec. 31, 2020
USD ($)
$ / shares
Dec. 31, 2019
USD ($)
₪ / shares
Dec. 31, 2019
USD ($)
$ / shares
Equity [abstract]            
Number of options exercisable (In Millions) 4 4 11 11 12 12
Weighted average exercise price | (per share) ₪ 14.29 $ 4.59 ₪ 13.89 $ 4.32 ₪ 15.19 $ 4.40