Income Taxes (Net Operating Loss Carryforwards) (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
State
Operating Loss Carryforwards [Line Items]
Net Operating Loss Carryforwards	$ 585	$ 624
Federal
Operating Loss Carryforwards [Line Items]
Net Operating Loss Carryforwards	$ 0	$ 0