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Financial Assets And Financial Liabilities (Financial Assets and Liabilities Not Measured at Fair Value) (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Cash and cash equivalents | $ 3,753 | $ 3,436 | $ 2,395
Cash segregated for regulatory purposes | 28,840 | 25,167 | $ 22,888
Securities - segregated for regulatory purposes | 35,386 | 31,781 |
Securities borrowed | 5,835 | 4,749 |
Securities purchased under agreements to resell | 5,504 | 6,029 |
Receivables from customers | 44,472 | 38,760 |
Brokers, dealers and clearing organizations | 1,643 | 3,469 |
Interest Receivable | 375 | 341 |
Other assets | 1,127 | 926 |
Short-term borrowings | 17 | 18 |
Securities loaned | 11,347 | 8,940 |
Customers | 101,012 | 93,195 |
Brokers, dealers and clearing organizations | 590 | 291 |
Interest | 311 | 193 |
at Fair Value |  |  |
Cash and cash equivalents | 3,753 | 3,436 |
Cash segregated for regulatory purposes | 28,840 | 25,167 |
Securities - segregated for regulatory purposes | 29,632 | 27,058 |
Securities borrowed | 5,835 | 4,749 |
Securities purchased under agreements to resell | 5,504 | 6,029 |
Receivables from customers | 44,472 | 38,760 |
Brokers, dealers and clearing organizations | 1,643 | 3,469 |
Interest Receivable | 375 | 341 |
Other assets | 23 | 18 |
Total financial assets, not measured at fair value | 120,077 | 109,027 |
Short-term borrowings | 17 | 18 |
Securities loaned | 11,347 | 8,940 |
Customers | 101,012 | 93,195 |
Brokers, dealers and clearing organizations | 590 | 291 |
Interest | 311 | 193 |
Total financial liabilities, not measured at fair value | 113,277 | 102,637 |
Carrying Value |  |  |
Cash and cash equivalents | 3,753 | 3,436 |
Cash segregated for regulatory purposes | 28,840 | 25,167 |
Securities - segregated for regulatory purposes | 29,632 | 27,058 |
Securities borrowed | 5,835 | 4,749 |
Securities purchased under agreements to resell | 5,504 | 6,029 |
Receivables from customers | 44,472 | 38,760 |
Brokers, dealers and clearing organizations | 1,643 | 3,469 |
Interest Receivable | 375 | 341 |
Other assets | 22 | 17 |
Total financial assets, not measured at fair value | 120,076 | 109,026 |
Short-term borrowings | 17 | 18 |
Securities loaned | 11,347 | 8,940 |
Customers | 101,012 | 93,195 |
Brokers, dealers and clearing organizations | 590 | 291 |
Interest | 311 | 193 |
Total financial liabilities, not measured at fair value | 113,277 | 102,637 |
Level 1 [Member] |  |  |
Cash and cash equivalents | 3,753 | 3,436 |
Cash segregated for regulatory purposes | 28,840 | 25,167 |
Total financial assets, not measured at fair value | 32,593 | 28,603 |
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 | 29,632 | 27,058 |
Securities borrowed | 5,835 | 4,749 |
Securities purchased under agreements to resell | 5,504 | 6,029 |
Receivables from customers | 44,472 | 38,760 |
Brokers, dealers and clearing organizations | 1,643 | 3,469 |
Interest Receivable | 375 | 341 |
Other assets | 2 | 2 |
Total financial assets, not measured at fair value | 87,463 | 80,408 |
Short-term borrowings | 17 | 18 |
Securities loaned | 11,347 | 8,940 |
Customers | 101,012 | 93,195 |
Brokers, dealers and clearing organizations | 590 | 291 |
Interest | 311 | 193 |
Total financial liabilities, not measured at fair value | 113,277 | 102,637 |
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 | 21 | 16 |
Total financial assets, not measured at fair value | 21 | 16 |
Short-term borrowings |  |  |
Securities loaned |  |  |
Customers |  |  |
Brokers, dealers and clearing organizations |  |  |
Interest |  |  |
Total financial liabilities, not measured at fair value |  |  |

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