v2.4.0.8

Nasdaq Omx Stockholders' Equity (Details) (USD $) In Millions, except Share data, unless otherwise specified | 3 Months Ended |  |  |  | 3 Months Ended | 1 Months Ended
--- | --- | --- | --- | --- | --- | ---
Mar. 31, 2014 | Mar. 31, 2013 | Sep. 30, 2012 | Dec. 31, 2013 | Mar. 31, 2014 Series A Preferred Stock [Member] | Dec. 31, 2013 Series A Preferred Stock [Member] | Mar. 31, 2014 Other Repurchases of Common Stock [Member] | Jun. 30, 2014 Dividend Declared [Member] | Apr. 30, 2014 Dividend Declared [Member]
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |  |
Common stock, shares authorized | 300,000,000 |  |  | 300,000,000 |  |  |  |  |
Common stock, shares issued | 216,181,636 |  |  | 214,419,155 |  |  |  |  |
Common stock, shares outstanding | 170,568,534 |  |  | 169,357,084 |  |  |  |  |
Common stock holder voting rights, maximum percentage of the then-outstanding shares of NASDAQ OMX common stock | 5.00% |  |  |  |  |  |  |  |
Common stock in treasury, shares | 45,613,102 |  |  | 45,062,071 |  |  |  |  |
Share repurchase program, authorized amount |  |  | $ 300 |  |  |  |  |  |
Treasury shares acquired |  | 321,000 |  |  |  |  | 551,919 |  |
Average price of repurchased stock |  | $ 31.12 |  |  |  |  |  |  |
Aggregate purchase price |  | 10 |  |  |  |  |  |  |
Remaining authorized share repurchase amounts under repurchase program | 215 |  |  |  |  |  |  |  |
Cash paid for repurchase of common stock |  | $ 10 |  |  |  |  |  |  |
Preferred stock, shares authorized | 30,000,000 |  |  | 30,000,000 |  |  |  |  |
Preferred stock par value | $ 0.01 |  |  |  |  |  |  |  |
Preferred stock, series A convertible preferred stock: shares issued | 0 |  |  | 1,600,000 | 0 | 1,600,000 |  |  |
Preferred stock, series A convertible preferred stock: shares outstanding | 0 |  |  | 0 | 0 | 0 |  |  |
Cash dividend per share | $ 0.28 | $ 0.13 |  |  |  |  |  |  | $ 0.15
Dividend declared, date payable |  |  |  |  |  |  |  | Jun. 27, 2014 |
Dividend declared, record date |  |  |  |  |  |  |  | Jun. 13, 2014 |

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