XML 63 R53.htm IDEA: XBRL DOCUMENT v3.23.1
Employee Postretirement Benefits - Narrative (Details) - USD ($)
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Pension Plan    
Defined Benefit Plan Disclosure [Line Items]    
Contributions by employer $ 0 $ 20,000,000