v3.26.3
CONDENSED STATEMENTS OF EQUITY - USD ($)
$ in Millions
Total
Total common shareholder's equity
Common stock
Additional paid in capital
Retained earnings
Balance at Dec. 31, 2024   $ 2,711.8 $ 95.6 $ 1,857.2 $ 759.0
Statements of equity          
Net income   75.8 0.0 0.0 75.8
Payment of dividends to parent   (30.0) 0.0 0.0 (30.0)
Stock-based compensation and other   0.1 0.0 0.1 0.0
Balance at Mar. 31, 2025   2,757.7 95.6 1,857.3 804.8
Balance at Dec. 31, 2024   2,711.8 95.6 1,857.2 759.0
Statements of equity          
Net income $ 227.3        
Payment of dividends to parent (90.0)        
Equity contribution from parent 140.0        
Balance at Sep. 30, 2025   2,989.3 95.6 1,997.4 896.3
Balance at Mar. 31, 2025   2,757.7 95.6 1,857.3 804.8
Statements of equity          
Net income   55.2 0.0 0.0 55.2
Payment of dividends to parent   (30.0) 0.0 0.0 (30.0)
Stock-based compensation and other   0.1 0.0 0.1 0.0
Balance at Jun. 30, 2025   2,783.0 95.6 1,857.4 830.0
Statements of equity          
Net income 96.3 96.3 0.0 0.0 96.3
Payment of dividends to parent   (30.0) 0.0 0.0 (30.0)
Equity contribution from parent   140.0 0.0 140.0 0.0
Balance at Sep. 30, 2025   2,989.3 95.6 1,997.4 896.3
Balance at Dec. 31, 2025   3,375.5 95.6 2,347.3 932.6
Statements of equity          
Net income   83.9 0.0 0.0 83.9
Payment of dividends to parent   (420.0) 0.0 0.0 (420.0)
Stock-based compensation and other   0.2 0.0 0.2 0.0
Balance at Mar. 31, 2026   3,039.6 95.6 2,347.5 596.5
Balance at Dec. 31, 2025   3,375.5 95.6 2,347.3 932.6
Statements of equity          
Net income 260.9        
Payment of dividends to parent (570.0)        
Equity contribution from parent 115.0        
Balance at Sep. 30, 2026   3,181.7 95.6 2,462.6 623.5
Balance at Mar. 31, 2026   3,039.6 95.6 2,347.5 596.5
Statements of equity          
Net income   55.3 0.0 0.0 55.3
Payment of dividends to parent   (120.0) 0.0 0.0 (120.0)
Equity contribution from parent   115.0 0.0 115.0 0.0
Balance at Jun. 30, 2026   3,089.9 95.6 2,462.5 531.8
Statements of equity          
Net income $ 121.7 121.7 0.0 0.0 121.7
Payment of dividends to parent   (30.0) 0.0 0.0 (30.0)
Stock-based compensation and other   0.1 0.0 0.1 0.0
Balance at Sep. 30, 2026   $ 3,181.7 $ 95.6 $ 2,462.6 $ 623.5