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Discontinued Operations (Details)
Share data in Millions, except Per Share data, unless otherwise specified |
3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | 0 Months Ended | 6 Months Ended | 0 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Jun. 30, 2014
USD ($)
|
Jun. 30, 2013
USD ($)
|
Jun. 30, 2014
USD ($)
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Jun. 30, 2013
USD ($)
|
Jun. 30, 2014
NYFIX, Metabit, and Wombat [Member]
USD ($)
|
Jun. 30, 2014
NYFIX, Metabit, and Wombat [Member]
USD ($)
|
Jun. 30, 2014
NYSE Technologies [Member]
USD ($)
|
Jun. 24, 2014
NYSE Euronext [Member]
USD ($)
transactions
|
Jun. 24, 2014
NYSE Euronext [Member]
EUR (€)
|
Jun. 30, 2014
NYSE Euronext [Member]
USD ($)
|
Jun. 24, 2014
Number of Shares, Total [Member]
NYSE Euronext [Member]
|
Jun. 24, 2014
Euronext IPO [Member]
NYSE Euronext [Member]
USD ($)
|
Jun. 24, 2014
Euronext IPO [Member]
NYSE Euronext [Member]
EUR (€)
|
Jun. 24, 2014
Cash Distribution [Member]
NYSE Euronext [Member]
USD ($)
|
Jun. 24, 2014
Shares Sold to Institutional Investors [Member]
NYSE Euronext [Member]
EUR (€)
|
Jun. 24, 2014
Shares Sold to Employees [Member]
NYSE Euronext [Member]
EUR (€)
|
|
| Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] | ||||||||||||||||
| Sale of Stock, Number of Shares Issued in Transaction | 65.8 | 42.2 | 42.2 | 23.4 | 0.2 | |||||||||||
| Sale of Stock, Price Per Share | € 20 | € 19.20 | € 16 | |||||||||||||
| Sale of stock, percentage of ownership sold | 94.00% | 94.00% | ||||||||||||||
| Sale of Stock, Number of Transactions | 3 | 3 | ||||||||||||||
| Proceeds from sales of available-for-sale investments | $ 28,000,000 | $ 0 | $ 1,900,000,000 | € 1,400,000,000 | $ 1,900,000,000 | € 1,400,000,000 | $ 220,000,000 | |||||||||
| Sale of stock, percentage of ownership after transaction | 6.00% | 6.00% | ||||||||||||||
| Sale of Stock, number of shares held after transaction | 4.2 | 4.2 | ||||||||||||||
| Sale of stock, remaining interest, lock up period | 180 days | 180 days | ||||||||||||||
| Ownership percentage | 6.00% | |||||||||||||||
| Discontinued operations, goodwill and intangibles | 2,300,000,000 | |||||||||||||||
| Disposal Group, Including Discontinued Operation, Assets of Disposal Group | 1.8 | 1.8 | ||||||||||||||
| Available-for-sale securities, noncurrent | 107,000,000 | |||||||||||||||
| External advisory costs, divestiture group | 39,000,000 | 60,000,000 | ||||||||||||||
| Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract] | ||||||||||||||||
| Total revenues, less transaction-based expenses | 166,000,000 | 329,000,000 | ||||||||||||||
| Compensation and benefits | 46,000,000 | 100,000,000 | ||||||||||||||
| Technology and communication | 12,000,000 | 27,000,000 | ||||||||||||||
| Professional services | 22,000,000 | 30,000,000 | ||||||||||||||
| Rent and occupancy | 5,000,000 | 12,000,000 | ||||||||||||||
| Acquisition-related transaction and integration costs | 55,000,000 | 96,000,000 | ||||||||||||||
| Selling, general, administrative | 5,000,000 | 15,000,000 | ||||||||||||||
| Depreciation and amortization | 7,000,000 | 16,000,000 | ||||||||||||||
| Total operating expenses | 152,000,000 | 296,000,000 | ||||||||||||||
| Operating income | 14,000,000 | 33,000,000 | ||||||||||||||
| Other income, net | 6,000,000 | 5,000,000 | ||||||||||||||
| Income tax expense | 12,000,000 | 17,000,000 | ||||||||||||||
| Income from discontinued operations, net of tax | 8,000,000 | 0 | 21,000,000 | 0 | ||||||||||||
| Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Abstract] | ||||||||||||||||
| Customer accounts receivable, net | 22,000,000 | |||||||||||||||
| Other current assets | 7,000,000 | |||||||||||||||
| Total current assets | 29,000,000 | |||||||||||||||
| Property and equipment, net | 14,000,000 | |||||||||||||||
| Goodwill and other intangible assets, net | 136,000,000 | |||||||||||||||
| Other non-current assets | 63,000,000 | |||||||||||||||
| Total non-current assets | 199,000,000 | |||||||||||||||
| Total assets | 242,000,000 | 2,900,000,000 | ||||||||||||||
| Accounts payable and accrued liabilities | 30,000,000 | |||||||||||||||
| Other current liabilities | 19,000,000 | |||||||||||||||
| Total current liabilities | 49,000,000 | |||||||||||||||
| Total non-current liabilities | 22,000,000 | |||||||||||||||
| Total liabilities | 71,000,000 | 1,100,000,000 | ||||||||||||||
| Disposal Group, Including Discontinued Operation, Net Gains Included in Other Income | $ 6,000,000 | |||||||||||||||