Acquisitions Acquisitions (Proforma Information) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	2 Months Ended	12 Months Ended
Dec. 31, 2013	Dec. 31, 2014	Dec. 31, 2013
Business Acquisition [Line Items]
Income from continuing operations			$ 1,373
NYSE Euronext [Member]
Business Acquisition [Line Items]
Total revenues, less transaction-based expenses	30	208	3,013
Income from continuing operations			774
Income from discontinued operations, net of tax			217
Net income attributable to ICE			$ 991
Continuing operations			$ 6.75
Discontinued operations			$ 1.90
Basic earnings per share			$ 8.65
Continuing operations			$ 6.71
Discontinued operations			$ 1.89
Diluted earnings per share			$ 8.60

Business Acquisition, Pro Forma Income (Loss) from Discontinued Operations, Net of Tax

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- Definition

Business Acquisition, Pro Forma Income (Loss) from Discontinued Operations, Net of Tax, Per Share, Basic

+ References

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- Definition

Business Acquisition, Pro Forma Revenue Less Transaction Based Expenses

+ References

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Business Acquisition, Pro Forma Income (Loss) from Discontinued Operations, Net of Tax, Per Share, Diluted

+ References

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- Definition

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (h)(2)-(3)

-URI http://asc.fasb.org/extlink&oid=25497992&loc=d3e1392-128463

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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma income from continuing operations before changes in accounting and extraordinary items, net of tax effect per basic share of common stock for a period as if the business combination or combinations had been completed at the beginning of a period.

+ References

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The pro forma income from continuing operations before changes in accounting and extraordinary items, net of tax effect, per diluted share of common stock for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma income from continuing operations before changes in accounting and extraordinary items, net of tax effect, for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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