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Condensed Consolidated Statements of Changes in Equity - USD ($) $ in Millions | Common Stock [Member] | Additional Paid-in Capital [Member] | Treasury Stock [Member] | Retained Earnings [Member] | Accumulated Other Comprehensive Income [Member] | Total Stockholders' Equity [Member] | Non-controlling Interests [Member] | Total
--- | --- | --- | --- | --- | --- | --- | --- | ---
Balance at Dec. 31, 2014 | $ 1 | $ 635 | $ (3) | $ 121 | $ 12 | $ 766 | $ 4,419 | $ 5,185
Common stock, shares issued at Dec. 31, 2014 | 58,612,245 |  |  |  |  |  |  |
Issuance of common stock in follow-on offering |  | 36 |  |  |  | 36 | (36) |
Number of new stock issued during the period (in shares) | 2,771,778 |  |  |  |  |  |  |
Common Stock distributed pursuant to stock incentive plans (in shares) | 2,484,693 |  |  |  |  |  |  |
Compensation for stock grants vesting in the future |  | 6 |  |  |  | 6 | 32 | 38
Deferred tax benefit retained - follow-on offering |  | 4 |  |  |  | 4 |  | 4
Excess Tax Benefit On Stock Incentive Plan |  | 2 |  |  |  | 2 |  | 2
Repurchase of common stock for employee tax withholding under stock incentive plans |  |  | (25) |  |  | (25) |  | (25)
Sales of treasury stock |  | 2 | 15 |  |  | 17 |  | 17
Dividends paid to stockholders |  |  |  | (18) |  | (18) |  | (18)
Distributions from IBG LLC to noncontrolling interests |  |  |  |  |  |  | (181) | (181)
Adjustments for changes in proportionate ownership in IBG LLC |  | 26 |  |  |  | 26 | (26) |
Comprehensive Income |  |  |  | 32 | (5) | 27 | 233 | 260
Balance at Sep. 30, 2015 | $ 1 | 711 | (13) | 135 | 7 | 841 | 4,441 | 5,282
Common stock, shares issued at Sep. 30, 2015 | 63,868,716 |  |  |  |  |  |  |
Balance at Dec. 31, 2015 | $ 1 | 718 | (3) | 145 | 2 | 863 | 4,481 | $ 5,344
Common stock, shares issued at Dec. 31, 2015 | 64,121,150 |  |  |  |  |  |  |
Issuance of common stock in follow-on offering |  | 22 |  |  |  | 22 | (22) |
Number of new stock issued during the period (in shares) | 1,596,200 |  |  |  |  |  |  | 1,596,200
Common Stock distributed pursuant to stock incentive plans (in shares) | 2,400,052 |  |  |  |  |  |  |
Compensation for stock grants vesting in the future |  | 6 |  |  |  | 6 | 28 | $ 34
Deferred tax benefit retained - follow-on offering |  | 2 |  |  |  | 2 |  | 2
Repurchase of common stock for employee tax withholding under stock incentive plans |  |  | (26) |  |  | (26) |  | (26)
Sales of treasury stock |  |  | 26 |  |  | 26 | (1) | 25
Dividends paid to stockholders |  |  |  | (20) |  | (20) |  | (20)
Distributions from IBG LLC to noncontrolling interests |  |  |  |  |  |  | (189) | (189)
Adjustments for changes in proportionate ownership in IBG LLC |  | 25 |  |  |  | 25 | (25) |
Comprehensive Income |  |  |  | 80 | 3 | 83 | 617 | 700
Balance at Sep. 30, 2016 | $ 1 | $ 773 | $ (3) | $ 205 | $ 5 | $ 981 | $ 4,889 | $ 5,870
Common stock, shares issued at Sep. 30, 2016 | 68,117,402 |  |  |  |  |  |  |

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- Definition Period increase in the value of tax savings realized by IBG Inc. that is not payable to IBG Holdings LLC, according to the "Tax Receivable Agreement". Amount increases additional paid-in capital. + References No definition available. + Details
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