v3.25.2
Benefit Plans (Summary Of Equity-based Compensation Plans Grants) (Details)
 6 Months Ended
Jun. 30, 2025
$ / shares
shares
Performance Shares (total shareowner return metric) [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Grants (in shares/units) | shares 105,523
Weighted average grant date fair value (in dollars per share/unit) | $ / shares $ 66.51
Performance Shares (net income and environmental metrics) [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Grants (in shares/units) | shares 118,457
Weighted average grant date fair value (in dollars per share/unit) | $ / shares $ 61.61
Restricted Stock Units [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Grants (in shares/units) | shares 98,821
Weighted average grant date fair value (in dollars per share/unit) | $ / shares $ 61.62