v3.26.1
Debt and Financing Arrangements - Narrative (Details) - USD ($)
$ in Millions
1 Months Ended 6 Months Ended
Jul. 31, 2026
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Debt Instrument        
Amount repaid   $ 0 $ 55  
Letters of credit   7   $ 6
Revolving Credit Facility        
Debt Instrument        
Maximum borrowing capacity   800    
Long-term line of credit   0   $ 0
Letter of Credit        
Debt Instrument        
Maximum borrowing capacity   $ 100    
Unsecured Debt | Unsecured notes due 2026 | Subsequent Event        
Debt Instrument        
Amount repaid $ 400      
Line of Credit | Revolving Credit Facility | Unsecured Debt        
Debt Instrument        
Debt term (in years)   5 years