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Subsequent Events | 12 Months Ended
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Dec. 31, 2016
Subsequent Events [Abstract] |
Subsequent Events | Subsequent Events Chief Executive Officer Effective January 1, 2017, Adena T. Friedman became the President and Chief Executive Officer of Nasdaq. Asset Impairment On January 30, 2017, Nasdaq’s board of directors approved a pre-tax, non-cash intangible asset impairment charge of $578 million related to the full write-off of the eSpeed trade name. See “Intangible Asset Impairment Charges,” of Note 5, “Goodwill and Acquired Intangible Assets,” for further discussion. Nasdaq NLX On January 30, 2017, Nasdaq’s board of directors approved the decision to wind down Nasdaq NLX, our London-based multilateral trading venue.

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- Definition The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business. + References No definition available. + Details
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