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Financial Assets And Financial Liabilities (Financial Assets and Liabilities Not Measured at Fair Value) (Details) - USD ($) $ in Millions | Jun. 30, 2025 | Dec. 31, 2024 | Jun. 30, 2024
--- | --- | --- | ---
Cash and cash equivalents | $ 4,688 | $ 3,633 | $ 3,918
Cash segregated for regulatory purposes | 45,057 | 36,600 | $ 31,370
Securities - segregated for regulatory purposes | 36,972 | 27,846 |
Securities borrowed | 10,145 | 5,369 |
Securities purchased under agreements to resell | 9,529 | 6,575 |
Receivables from customers | 65,346 | 64,432 |
Brokers, dealers and clearing organizations | 4,074 | 2,196 |
Interest Receivable | 454 | 446 |
Other assets | 1,354 | 1,121 |
Short-term borrowings | 8 | 14 |
Securities loaned | 21,229 | 16,248 |
Customers | 138,417 | 115,343 |
Brokers, dealers and clearing organizations | 1,682 | 476 |
Interest | 283 | 311 |
at Fair Value |  |  |
Cash and cash equivalents | 4,688 | 3,633 |
Cash segregated for regulatory purposes | 45,057 | 36,600 |
Securities - segregated for regulatory purposes | 30,952 | 21,353 |
Securities borrowed | 10,145 | 5,369 |
Securities purchased under agreements to resell | 9,529 | 6,575 |
Receivables from customers | 65,346 | 64,432 |
Brokers, dealers and clearing organizations | 4,074 | 2,196 |
Interest Receivable | 454 | 446 |
Other assets | 44 | 32 |
Total financial assets, not measured at fair value | 170,289 | 140,636 |
Short-term borrowings | 8 | 14 |
Securities loaned | 21,229 | 16,248 |
Customers | 138,417 | 115,343 |
Brokers, dealers and clearing organizations | 1,682 | 476 |
Interest | 283 | 311 |
Total financial liabilities, not measured at fair value | 161,619 | 132,392 |
Carrying Value |  |  |
Cash and cash equivalents | 4,688 | 3,633 |
Cash segregated for regulatory purposes | 45,057 | 36,600 |
Securities - segregated for regulatory purposes | 30,952 | 21,353 |
Securities borrowed | 10,145 | 5,369 |
Securities purchased under agreements to resell | 9,529 | 6,575 |
Receivables from customers | 65,346 | 64,432 |
Brokers, dealers and clearing organizations | 4,074 | 2,196 |
Interest Receivable | 454 | 446 |
Other assets | 40 | 30 |
Total financial assets, not measured at fair value | 170,285 | 140,634 |
Short-term borrowings | 8 | 14 |
Securities loaned | 21,229 | 16,248 |
Customers | 138,417 | 115,343 |
Brokers, dealers and clearing organizations | 1,682 | 476 |
Interest | 283 | 311 |
Total financial liabilities, not measured at fair value | 161,619 | 132,392 |
Level 1 [Member] |  |  |
Cash and cash equivalents | 4,688 | 3,633 |
Cash segregated for regulatory purposes | 45,057 | 36,600 |
Total financial assets, not measured at fair value | 49,745 | 40,233 |
Short-term borrowings |  |  |
Securities loaned |  |  |
Customers |  |  |
Brokers, dealers and clearing organizations |  |  |
Interest |  |  |
Total financial liabilities, not measured at fair value |  |  |
Level 2 [Member] |  |  |
Securities - segregated for regulatory purposes | 30,952 | 21,353 |
Securities borrowed | 10,145 | 5,369 |
Securities purchased under agreements to resell | 9,529 | 6,575 |
Receivables from customers | 65,346 | 64,432 |
Brokers, dealers and clearing organizations | 4,074 | 2,196 |
Interest Receivable | 454 | 446 |
Other assets | 5 | 3 |
Total financial assets, not measured at fair value | 120,505 | 100,374 |
Short-term borrowings | 8 | 14 |
Securities loaned | 21,229 | 16,248 |
Customers | 138,417 | 115,343 |
Brokers, dealers and clearing organizations | 1,682 | 476 |
Interest | 283 | 311 |
Total financial liabilities, not measured at fair value | 161,619 | 132,392 |
Level 3 [Member] |  |  |
Cash and cash equivalents |  |  |
Cash segregated for regulatory purposes |  |  |
Securities - segregated for regulatory purposes |  |  |
Securities borrowed |  |  |
Securities purchased under agreements to resell |  |  |
Receivables from customers |  |  |
Brokers, dealers and clearing organizations |  |  |
Interest Receivable |  |  |
Other assets | 39 | 29 |
Total financial assets, not measured at fair value | 39 | 29 |
Short-term borrowings |  |  |
Securities loaned |  |  |
Customers |  |  |
Brokers, dealers and clearing organizations |  |  |
Interest |  |  |
Total financial liabilities, not measured at fair value |  |  |

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