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Employee Benefit Plans (Defined Benefit Plan Assumptions Used) (Details)
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Pension Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Assumed rates of return on invested assets 3.50% 4.00% 5.50%
Pension Benefits | Minimum      
Defined Benefit Plan Disclosure [Line Items]      
Discount rates — benefit obligation 1.80% 1.40% 2.55%
Discount rates — service cost 1.40% 2.55% 3.90%
Pension Benefits | Maximum      
Defined Benefit Plan Disclosure [Line Items]      
Discount rates — benefit obligation 2.70% 2.30% 3.10%
Discount rates — service cost 2.30% 3.10% 4.25%
Other Postretirement Benefits      
Defined Benefit Plan Disclosure [Line Items]      
Discount rates — benefit obligation 2.85% 2.55% 3.30%
Discount rates — service cost 2.55% 3.30% 4.35%
Salary increase assumptions 3.00% 3.00% 3.00%