Acquisitions, Investments and Divestitures	9 Months Ended
Sep. 30, 2017
Business Combinations [Abstract]
Acquisitions, Investments and Divestitures	Acquisitions, Investments and Divestitures Pending Acquisition of Virtu BondPoint On October 24, 2017, we entered into a definitive agreement to acquire 100% of Virtu BondPoint from Virtu Financial, Inc. for $400 million in cash. The transaction is expected to close in the first quarter of 2018, and the closing is subject to applicable regulatory reviews and approvals. Virtu BondPoint is a leading provider of electronic fixed income trading solutions for the buy-side and sell-side offering access to centralized liquidity and automated trade execution services through its alternative trading system, or ATS, linking more than 500 financial services firms. Investment in Euroclear On October 24, 2017, we acquired a 4.7% stake in Euroclear for €275 million ($326 million) in cash. Euroclear is a leading provider of post-trade services, including settlement, central securities depositories and related services for cross-border transactions across asset classes. Acquisition of Global Research Division’s Index Business from Bank of America Merrill Lynch, or BofAML On October 20, 2017, we acquired BofAML's Global Research division’s index business. BofAML indices are the second largest group of fixed income indices as measured by assets under management, or AUM, globally. The AUM benchmarked against our combined fixed income indices is nearly $1 trillion, and the indices have been re-branded as the ICE BofAML indices. Purchase of Minority Interests For consolidated subsidiaries in which our ownership is less than 100% and for which we have control over the assets, liabilities and management of the entity, the outside stockholders’ interests are shown as non-controlling interest in our consolidated financial statements. As of December 31, 2016, non-controlling interest included those related to the operating results of our CDS clearing subsidiaries in which non-ICE limited partners held a 42.5% net profit sharing interest; ICE Endex in which Gasunie held a 21% ownership interest; and ICE Clear Netherlands in which ABN AMRO Clearing Bank N.V. held a 25% ownership interest. For both ICE Endex and ICE Clear Netherlands, in addition to the non-controlling interest reported in the consolidated statements of income, we reported redeemable non-controlling interest in the consolidated balance sheets which represents the minority interest redemption fair value for each company. During June 2017, we purchased both Gasunie’s 21% minority ownership interest in ICE Endex and ABN AMRO Clearing Bank N.V.’s 25% minority ownership interest in ICE Clear Netherlands. Subsequent to these acquisitions, we own 100% of ICE Endex and ICE Clear Netherlands and will no longer include any non-controlling interest amounts for ICE Endex and ICE Clear Netherlands in our consolidated financial statements. During April 2017, we purchased 3.2% of the net profit sharing interest in our CDS clearing subsidiaries from a non-ICE limited partner and the remaining non-ICE limited partners hold a 39.3% net profit sharing interest as of September 30, 2017. NYSE Governance Services Divestiture On June 1, 2017, we sold NYSE Governance Services to Marlin Heritage, L.P. NYSE Governance Services provides governance and compliance analytics and education solutions for organizations and their boards of directors through dynamic learning solutions. We recognized a net loss of $6 million on the sale of NYSE Governance Services, which was recorded as amortization expense within our data and listings segment in the accompanying consolidated statements of income for the nine months ended September 30, 2017. TMX Atrium Acquisition On May 1, 2017, we acquired 100% of TMX Atrium, a global extranet and wireless services business, from TMX Group. TMX Atrium provides low-latency access to markets and market data across 12 countries, more than 30 major trading venues, and ultra-low latency wireless connectivity to access markets and market data in the Toronto, New Jersey and Chicago metro areas. The wireless assets consist of microwave and millimeter networks that transport market data and provide private bandwidth. TMX Atrium is now part of ICE Data Services and is being integrated with our connectivity services. Interactive Data Managed Solutions (IDMS) Divestiture On March 31, 2017, we sold Interactive Data Managed Solutions, or IDMS, a unit of Interactive Data, to FactSet. IDMS is a managed solutions and portal provider for the global wealth management industry. There was no gain or loss recognized on the sale of IDMS. National Stock Exchange Acquisition On January 31, 2017, we acquired 100% of National Stock Exchange, Inc., now named NYSE National. The acquisition gives the NYSE Group a fourth U.S. exchange license. NYSE National is distinct from NYSE Group’s three listings exchanges because NYSE National will only be a trading venue and will not be a listings market. NYSE Group’s three listings exchanges, NYSE, NYSE American (NYSE American was formerly known as NYSE MKT) and NYSE Arca, have unique market models designed for corporate and exchange traded fund, or ETF, issuers. After closing the transaction, NYSE National ceased operations on February 1, 2017. We will engage with NYSE National members, buy-side participants and retail brokerage firms before finalizing operational plans for NYSE National’s re-launch, which is expected to occur in 2018.

Acquisitions, Investments and Divestitures

Pending Acquisition of Virtu BondPoint

On October 24, 2017, we entered into a definitive agreement to acquire 100% of Virtu BondPoint from Virtu Financial, Inc. for $400 million in cash. The transaction is expected to close in the first quarter of 2018, and the closing is subject to applicable regulatory reviews and approvals. Virtu BondPoint is a leading provider of electronic fixed income trading solutions for the buy-side and sell-side offering access to centralized liquidity and automated trade execution services through its alternative trading system, or ATS, linking more than 500 financial services firms.

Investment in Euroclear

On October 24, 2017, we acquired a 4.7% stake in Euroclear for €275 million ($326 million) in cash. Euroclear is a leading provider of post-trade services, including settlement, central securities depositories and related services for cross-border transactions across asset classes.

Acquisition of Global Research Division’s Index Business from Bank of America Merrill Lynch, or BofAML

On October 20, 2017, we acquired BofAML's Global Research division’s index business. BofAML indices are the second largest group of fixed income indices as measured by assets under management, or AUM, globally. The AUM benchmarked against our combined fixed income indices is nearly $1 trillion, and the indices have been re-branded as the ICE BofAML indices.

Purchase of Minority Interests

For consolidated subsidiaries in which our ownership is less than 100% and for which we have control over the assets, liabilities and management of the entity, the outside stockholders’ interests are shown as non-controlling interest in our consolidated financial statements. As of December 31, 2016, non-controlling interest included those related to the operating results of our CDS clearing subsidiaries in which non-ICE limited partners held a 42.5% net profit sharing interest; ICE Endex in which Gasunie held a 21% ownership interest; and ICE Clear Netherlands in which ABN AMRO Clearing Bank N.V. held a 25% ownership interest. For both ICE Endex and ICE Clear Netherlands, in addition to the non-controlling interest reported in the consolidated statements of income, we reported redeemable non-controlling interest in the consolidated balance sheets which represents the minority interest redemption fair value for each company.

During June 2017, we purchased both Gasunie’s 21% minority ownership interest in ICE Endex and ABN AMRO Clearing Bank N.V.’s 25% minority ownership interest in ICE Clear Netherlands. Subsequent to these acquisitions, we own 100% of ICE Endex and ICE Clear Netherlands and will no longer include any non-controlling interest amounts for ICE Endex and ICE Clear Netherlands in our consolidated financial statements. During April 2017, we purchased 3.2% of the net profit sharing interest in our CDS clearing subsidiaries from a non-ICE limited partner and the remaining non-ICE limited partners hold a 39.3% net profit sharing interest as of September 30, 2017.

NYSE Governance Services Divestiture

On June 1, 2017, we sold NYSE Governance Services to Marlin Heritage, L.P. NYSE Governance Services provides governance and compliance analytics and education solutions for organizations and their boards of directors through dynamic learning solutions. We recognized a net loss of $6 million on the sale of NYSE Governance Services, which was recorded as amortization expense within our data and listings segment in the accompanying consolidated statements of income for the nine months ended September 30, 2017.

TMX Atrium Acquisition

On May 1, 2017, we acquired 100% of TMX Atrium, a global extranet and wireless services business, from TMX Group. TMX Atrium provides low-latency access to markets and market data across 12 countries, more than 30 major trading venues, and ultra-low latency wireless connectivity to access markets and market data in the Toronto, New Jersey and Chicago metro areas. The wireless assets consist of microwave and millimeter networks that transport market data and provide private bandwidth. TMX Atrium is now part of ICE Data Services and is being integrated with our connectivity services.

Interactive Data Managed Solutions (IDMS) Divestiture

On March 31, 2017, we sold Interactive Data Managed Solutions, or IDMS, a unit of Interactive Data, to FactSet. IDMS is a managed solutions and portal provider for the global wealth management industry. There was no gain or loss recognized on the sale of IDMS.

National Stock Exchange Acquisition

On January 31, 2017, we acquired 100% of National Stock Exchange, Inc., now named NYSE National. The acquisition gives the NYSE Group a fourth U.S. exchange license. NYSE National is distinct from NYSE Group’s three listings exchanges because NYSE National will only be a trading venue and will not be a listings market. NYSE Group’s three listings exchanges, NYSE, NYSE American (NYSE American was formerly known as NYSE MKT) and NYSE Arca, have unique market models designed for corporate and exchange traded fund, or ETF, issuers. After closing the transaction, NYSE National ceased operations on February 1, 2017. We will engage with NYSE National members, buy-side participants and retail brokerage firms before finalizing operational plans for NYSE National’s re-launch, which is expected to occur in 2018.