CONSOLIDATED STATEMENTS OF COMMON STOCKHOLDERS' EQUITY (UNAUDITED) - USD ($) $ in Millions	Total	Common Stock	Additional Paid In Capital	Retained Earnings	Accumulated Other Comprehensive Loss
Beginning balance (in shares) at Dec. 31, 2024		100
Beginning balance at Dec. 31, 2024	$ 4,238	$ 0	$ 3,647	$ 592	$ (1)
Increase (Decrease) in Stockholders' Equity
Net income	59			59
Dividends declared to parent	(53)			(53)
Contributions of capital by parent	200		200
Ending balance (in shares) at Mar. 31, 2025		100
Ending balance at Mar. 31, 2025	$ 4,444	$ 0	3,847	598	(1)
Beginning balance (in shares) at Dec. 31, 2025	100	100
Beginning balance at Dec. 31, 2025	$ 4,842	$ 0	4,221	622	(1)
Increase (Decrease) in Stockholders' Equity
Net income	84			84
Dividends declared to parent	(66)			(66)
Contributions of capital by parent	$ 500		500
Ending balance (in shares) at Mar. 31, 2026	100	100
Ending balance at Mar. 31, 2026	$ 5,360	$ 0	$ 4,721	$ 640	$ (1)