Variable Interest Entities - Consolidated Variable Interest Entity Asset and Liability Information (Details) $ in Millions	Dec. 31, 2023 USD ($) instrument	Dec. 31, 2022 USD ($) instrument
Disclosure of Variable Interest Entities Assets and Liabilities [Line Items]
Notional Amounts	$ 544
Carrying Value	$ 6,474	$ 3,594
Variable Interest Entity, Primary Beneficiary
Disclosure of Variable Interest Entities Assets and Liabilities [Line Items]
Number of Instruments | instrument	1,000,000	1,000,000
Notional Amounts	$ 544	$ 568
Carrying Value	$ 0	$ 0