Variable Interest Entities - Consolidated Variable Interest Entity Asset and Liability Information (Details) $ in Millions	Mar. 31, 2026 USD ($) instrument	Dec. 31, 2025 USD ($) instrument
Disclosure of Variable Interest Entities Assets and Liabilities [Line Items]
Carrying Value	$ 8,337	$ 9,945
Variable Interest Entity, Primary Beneficiary
Disclosure of Variable Interest Entities Assets and Liabilities [Line Items]
Number of Instruments | instrument	1	1
Notional/Par Amounts	$ 390	$ 210
Carrying Value	$ 390	$ 210