XML 174 R125.htm IDEA: XBRL DOCUMENT v3.21.1
Pensions - Schedule of Quantitative Sensitivity Analysis (Parenthetical) (Details) - Final Salary Defined Benefit Pension Plan
Dec. 31, 2020
Discount Rate  
Disclosure Of Sensitivity Analysis For Actuarial Assumptions [Line Items]  
Percentage of reasonably possible increase in actuarial assumption 0.25%
Percentage of reasonably possible decrease in actuarial assumption 0.25%
Pension Increases (Decreases)  
Disclosure Of Sensitivity Analysis For Actuarial Assumptions [Line Items]  
Percentage of reasonably possible increase in actuarial assumption 0.25%
Percentage of reasonably possible decrease in actuarial assumption 0.25%