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Financial Instruments - Gross Assets And Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Derivative Asset [Abstract]
Derivative Assets Subject to Master Netting Agreement	$ 0	$ 3
Derivatives Available for Offset	0	(1)
Non-cash Collateral Received	0	0
Cash Collateral Received	0	0
Net Amount of Derivative Assets	0	2
Derivative Liability [Abstract]
Derivative Liabilities Subject to Master Netting Agreement	(10)	(1)
Derivatives Available for Offset	0	1
Non-cash Collateral Received	0	0
Cash Collateral Received	0	0
Net Amount of Derivative Liabilities	(10)	0
JP Morgan Chase Bank
Derivative Asset [Abstract]
Derivative Assets Subject to Master Netting Agreement	0	3
Derivatives Available for Offset	0	(1)
Non-cash Collateral Received	0	0
Cash Collateral Received	0	0
Net Amount of Derivative Assets	0	2
Derivative Liability [Abstract]
Derivative Liabilities Subject to Master Netting Agreement	(10)	(1)
Derivatives Available for Offset	0	1
Non-cash Collateral Received	0	0
Cash Collateral Received	0	0
Net Amount of Derivative Liabilities	$ (10)	$ 0

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