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Regulatory Requirements (Tables) | 9 Months Ended
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Sep. 30, 2016
Regulatory Requirements [Abstract] |
Summary Of Capital, Capital Requirements And Excess Capital |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |
﻿ |  | Net Capital/ |  |  |  |  |  |
﻿ |  | Eligible Equity |  | Requirement |  | Excess
﻿ |  |  |  |  |  |  |  |  |
﻿ |  | (in millions)
﻿IB LLC |  | $ | 3,217 |  | $ | 325 |  | $ | 2,892
﻿TH LLC |  |  | 318 |  |  | 1 |  |  | 317
﻿THE |  |  | 603 |  |  | 181 |  |  | 422
﻿Other regulated Operating Companies |  |  | 679 |  |  | 79 |  |  | 600
﻿ |  | $ | 4,817 |  | $ | 586 |  | $ | 4,231
﻿

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