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Regulatory Requirements (Tables) | 3 Months Ended
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Mar. 31, 2021
Regulatory Requirements [Abstract] |
Summary Of Capital, Capital Requirements And Excess Capital |
|  | Net Capital/ |  |  |  |  |  |
|  | Eligible Equity |  | Requirement |  | Excess
|  | (in millions)
IB LLC |  | $ | 5,211 |  | $ | 753 |  | $ | 4,458
IBKRFS |  |  | 600 |  |  | 21 |  |  | 579
IBHK |  |  | 738 |  |  | 264 |  |  | 474
Other regulated operating subsidiaries |  |  | 1,644 |  |  | 420 |  |  | 1,224
|  | $ | 8,193 |  | $ | 1,458 |  | $ | 6,735

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