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Retirement and Benefit Plans - Targeted and Actual Weighted Average Asset Allocations by Plan Asset Category (Details)
Dec. 31, 2022
Dec. 31, 2021
Defined Benefit Plan Disclosure    
Actual weighted-average asset allocation percentage 100.00% 100.00%
Equity securities    
Defined Benefit Plan Disclosure    
Actual weighted-average asset allocation percentage 0.00% 0.00%
Equity securities | Minimum    
Defined Benefit Plan Disclosure    
Target allocation percentage 0.00%  
Equity securities | Maximum    
Defined Benefit Plan Disclosure    
Target allocation percentage 55.00%  
Fixed-income securities    
Defined Benefit Plan Disclosure    
Actual weighted-average asset allocation percentage 92.00% 96.00%
Fixed-income securities | Minimum    
Defined Benefit Plan Disclosure    
Target allocation percentage 50.00%  
Fixed-income securities | Maximum    
Defined Benefit Plan Disclosure    
Target allocation percentage 100.00%  
Alternative strategies    
Defined Benefit Plan Disclosure    
Actual weighted-average asset allocation percentage 0.00% 0.00%
Alternative strategies | Minimum    
Defined Benefit Plan Disclosure    
Target allocation percentage 0.00%  
Alternative strategies | Maximum    
Defined Benefit Plan Disclosure    
Target allocation percentage 5.00%  
Cash or cash equivalents    
Defined Benefit Plan Disclosure    
Actual weighted-average asset allocation percentage 8.00% 4.00%
Cash or cash equivalents | Minimum    
Defined Benefit Plan Disclosure    
Target allocation percentage 0.00%  
Cash or cash equivalents | Maximum    
Defined Benefit Plan Disclosure    
Target allocation percentage 100.00%