v3.26.1
Financial Instruments Subject to Off-Balance Sheet Credit Risk - Offsetting Assets and Liabilities (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Resale agreements    
Gross Assets $ 24,410 $ 16,901
Gross Amounts Offset in the Condensed Consolidated Balance Sheets 0 0
Net Amounts Presented in the Condensed Consolidated Balance Sheets 24,410 16,901
Counterparty Offsetting 0 0
Collateral (24,410) (16,901)
Net Amount 0 0
Securities borrowed    
Gross Assets 8,593 4,797
Gross Amounts Offset in the Condensed Consolidated Balance Sheets 0 0
Net Amounts Presented in the Condensed Consolidated Balance Sheets 8,593 4,797
Counterparty Offsetting (5,713) (3,069)
Collateral (2,876) (1,677)
Net Amount 4 51
Interest rate swaps    
Total Gross Assets 33,004 21,699
Gross Amounts Offset in the Condensed Consolidated Balance Sheets 0 0
Net Amounts Presented in the Condensed Consolidated Balance Sheets 33,004 21,699
Counterparty Offsetting (5,714) (3,069)
Collateral (27,286) (18,578)
Net Amount 4 52
Repurchase agreements    
Gross Liabilities 3,499 1,301
Gross Amounts Offset in the Condensed Consolidated Balance Sheets 0 0
Net Amounts Presented in the Condensed Consolidated Balance Sheets 3,499 1,301
Counterparty Offsetting 0 0
Collateral (3,499) (1,301)
Net Amount 0 0
Securities loaned    
Gross Liabilities 26,484 25,131
Gross Amounts Offset in the Condensed Consolidated Balance Sheets 0 0
Net Amounts Presented in the Condensed Consolidated Balance Sheets 26,484 25,131
Counterparty Offsetting (5,713) (3,069)
Collateral (20,625) (21,137)
Net Amount 146 925
Secured short-term borrowings    
Net Amounts Presented in the Condensed Consolidated Balance Sheets 12,486 6,913
Interest rate swaps    
Total Gross Liabilities 34,785 30,233
Gross Amounts Offset in the Condensed Consolidated Balance Sheets 0 0
Net Amounts Presented in the Condensed Consolidated Balance Sheets 34,785 30,233
Counterparty Offsetting (5,714) (3,069)
Collateral (28,925) (26,238)
Net Amount 146 926
Fair value of client securities available to be pledged 174,936 155,525
Available for sale securities, assets pledged 61,090 62,357
Maturity Overnight and on Demand    
Securities loaned    
Net Amounts Presented in the Condensed Consolidated Balance Sheets 13,400 15,000
Maturity 35 to 95 Days    
Securities loaned    
Net Amounts Presented in the Condensed Consolidated Balance Sheets $ 13,100 $ 10,100
Minimum    
Interest rate swaps    
Repurchase agreement continous contractual maturities 35 days 35 days
Remaining contractual maturities on securities loaned 35 days 35 days
Maximum    
Interest rate swaps    
Repurchase agreement continous contractual maturities 60 days 60 days
Remaining contractual maturities on securities loaned 95 days 95 days
Secured short-term borrowings    
Secured short-term borrowings    
Gross Liabilities $ 4,800 $ 3,800
Gross Amounts Offset in the Condensed Consolidated Balance Sheets 0 0
Net Amounts Presented in the Condensed Consolidated Balance Sheets 4,800 3,800
Counterparty Offsetting 0 0
Collateral (4,800) (3,800)
Net Amount 0 0
Asset Pledged as Collateral    
Interest rate swaps    
Available for sale securities, assets pledged 648 281
Interest rate swaps | Asset Pledged as Collateral    
Interest rate swaps    
Available for sale securities, assets pledged 648 281
Securities Sold under Agreements to Repurchase    
Interest rate swaps    
Fair value of collateral pledged in connection with repurchase agreements 3,100 1,300
Resale and Repurchase Agreements    
Interest rate swaps    
Fair value of client securities available to be pledged 24,800 17,200
Interest rate swaps    
Interest rate swaps    
Gross Assets 1 1
Gross Amounts Offset in the Condensed Consolidated Balance Sheets 0 0
Net Amounts Presented in the Condensed Consolidated Balance Sheets 1 1
Counterparty Offsetting (1) 0
Collateral 0 0
Net Amount 0 1
Interest rate swaps    
Gross Liabilities 2 1
Gross Amounts Offset in the Condensed Consolidated Balance Sheets 0 0
Net Amounts Presented in the Condensed Consolidated Balance Sheets 2 1
Counterparty Offsetting (1) 0
Collateral (1) 0
Net Amount $ 0 $ 1