v2.4.0.8

Nasdaq Omx Stockholders' Equity (Details) (USD $) In Millions, except Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended |  |  |  | 9 Months Ended | 1 Months Ended
--- | --- | --- | --- | --- | --- | --- | ---
Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012 | Dec. 31, 2012 | Sep. 30, 2013 Series A Preferred Stock [Member] | Dec. 31, 2012 Series A Preferred Stock [Member] | Sep. 30, 2013 Other Repurchases of Common Stock [Member] | Oct. 31, 2013 Dividend Declared [Member]
Stockholders Equity [Line Items] |  |  |  |  |  |  |  |  |
Common stock, shares authorized | 300,000,000 |  | 300,000,000 |  | 300,000,000 |  |  |  |
Common stock, shares issued | 213,426,908 |  | 213,426,908 |  | 213,426,908 |  |  |  |
Common stock, shares outstanding | 167,405,199 |  | 167,405,199 |  | 165,605,838 |  |  |  |
Common stock holder voting rights, maximum percentage of the then-outstanding shares of NASDAQ OMX common stock | 5.00% |  | 5.00% |  |  |  |  |  |
Common stock in treasury, shares | 46,021,709 |  | 46,021,709 |  | 47,821,070 |  |  |  |
Share repurchase program, authorized amount |  | $ 300 |  |  |  |  |  |  |
Treasury shares acquired |  |  | 321,000 |  |  |  |  | 121,425 |
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 | $ 225 |  |  |  |  |
Preferred stock, shares authorized | 30,000,000 |  | 30,000,000 |  | 30,000,000 |  |  |  |
Preferred stock par value | $ 0.01 |  | $ 0.01 |  |  |  |  |  |
Preferred stock, series A convertible preferred stock: shares issued | 1,600,000 |  | 1,600,000 |  | 1,600,000 | 1,600,000 | 1,600,000 |  |
Preferred stock, series A convertible preferred stock: shares outstanding | 0 |  | 0 |  | 0 | 0 | 0 |  |
Cash dividend per share | $ 0.13 | $ 0.13 | $ 0.39 | $ 0.26 |  |  |  |  | $ 0.13
Dividend declared, date payable |  |  |  |  |  |  |  |  | Dec. 27, 2013
Dividend declared, record date |  |  |  |  |  |  |  |  | Dec. 13, 2013

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