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Collateralized Agreements and Offsetting Arrangements - Offsetting of Financial Assets (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Securities Purchased under Agreements to Resell    
Gross Amount Recognized $ 78,378 $ 108,338
Counterparty netting (6,459) (8,220)
Securities purchased under agreements to resell 71,919 100,118
Gross Amount Not Offset in the Consolidated Balance Sheets (71,919) (100,118)
Net Amount 0 0
Securities Purchased under Agreements to Resell    
Offsetting Assets [Line Items]    
Securities Purchased under Agreements to Resell, Fair Value of Collateral 78,300 104,900
Collateral Securities Repledged, Delivered, or Used $ 0 $ 0