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Equity (Share-based Payments to Employees, Non-marketable Options, Average Remaining Contractual Life) (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of terms and conditions of share-based payment arrangement [line items]      
Average remaining contractual life 2 years 9 months 29 days 3 years 6 months 29 days 3 years 10 months 6 days