Investments (Unconsolidated Variable Interest Entities) (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Variable Interest Entity [Line Items]
Total Assets	$ 382,832	$ 383,516
Commitments to Extend Credit [Member]
Variable Interest Entity [Line Items]
Total Assets	2,400	2,300
Variable Interest Entity, Not Primary Beneficiary
Variable Interest Entity [Line Items]
Total Assets	$ 11,500	$ 12,000

Amount of asset recognized for present right to economic benefit.

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+ Details

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References + Details