Derivative Financial Instruments - Offsetting Assets and Liabilities (Details) - USD ($)	Dec. 31, 2024	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Gross Amount Recognized, Assets	$ 303,000,000	$ 311,000,000
Counterparty netting, Assets	(261,000,000)	(216,000,000)
Cash collateral netting, Assets	(34,000,000)	(76,000,000)
Securities collateral netting, Assets	(3,000,000)	(8,000,000)
Net receivables/payables, Assets	5,000,000	11,000,000
Gross Amount Recognized, Liabilities	332,000,000	370,000,000
Counterparty netting, Liabilities	(261,000,000)	(216,000,000)
Cash collateral netting, Liabilities	(58,000,000)	(150,000,000)
Securities collateral netting, Liabilities	(6,000,000)	(3,000,000)
Net receivables/payables, Liabilities	7,000,000	1,000,000
Excluded asset exchange traded contract	0	0
Excluded Liability Exchange Traded Contracts	$ 0	$ 1,000,000

Amount of obligation to return cash collateral under master netting arrangements offset against derivative assets.

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-Section 45
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Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets.

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