Compensation Expense, Performance Shares

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- Definition

Maximum Compensation Expense, Performance Share Awards

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Performance Shares, Vesting, Target Performance Level Met

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- Definition

Qualifying excess tax benefits that are eligible to absorb future write-offs.

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Number of treasury shares received for restricted stock and stock option tax payments.

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- Definition

Share Based Compensation Arrangement by Share Based Payment Award, Awards Exercise Period

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Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Typical Vesting Period

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- Definition

Share Based Compensation Arrangement By Share Based Payment Shares Reserved For Future Issuance

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Share-based Compensation, Less Business Combination Related Costs

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Stock Options Granted Expire Period

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Stock To Be Granted, Shares, Share-based Compensation, Net of Forfeitures

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Stock To Be Granted, Value, Share-based Compensation, Net of Forfeitures

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Amount of increase in additional paid in capital (APIC) resulting from a tax benefit associated with share-based compensation plan other than an employee stock ownership plan (ESOP). Includes, but is not limited to, excess tax benefit.

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Aggregate number of common shares reserved for future issuance.

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- Definition

Represents the compensation cost capitalized during the period arising from equity-based compensation arrangements (for example, shares of stock, units, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

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Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units.

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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Net number of share options (or share units) granted during the period.

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The number of exercisable share options (fully vested and expected to vest) that may be converted as of the balance sheet date.

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As of the balance sheet date, the weighted-average exercise price (at which grantees can acquire the shares reserved for issuance) for exercisable stock options that are fully vested or expected to vest.

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Value, after forfeitures, of stock or other type of equity granted of any equity-based compensation plan other than an employee stock ownership plan (ESOP).

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Amount remaining of a stock repurchase plan authorized.

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Amount of decrease of par value, additional paid in capital (APIC) and retained earnings of common and preferred stock retired from treasury when treasury stock is accounted for under the par value method.

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Number of shares that have been repurchased during the period and are being held in treasury.

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Number of shares of common and preferred stock retired from treasury during the period.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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-Name Regulation S-X (SX)

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Equity Equity- Narrative (Details) (USD $) In Millions, except Share data, unless otherwise specified	0 Months Ended	12 Months Ended
	Nov. 13, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Class of Stock [Line Items]
Share-based Compensation, Less Business Combination Related Costs			$ 82	$ 56	$ 52
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value			138	62	51
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			560,380	825,919	497,161
Maximum Compensation Expense, Performance Share Awards		86
Granted, Number of options			154,202	152,361	102,657
Stock-based compensation			97us-gaap_ShareBasedCompensation	64us-gaap_ShareBasedCompensation	52us-gaap_ShareBasedCompensation
Employee Service Share-based Compensation, Tax Benefit from Compensation Expense			28	17	16
Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount			7	7	6
Tax benefits from stock option plans			26	8	9
Qualifying Excess Tax Benefits Eligible To Future Write Offs			26	8	9
Common Stock, Capital Shares Reserved for Future Issuance			4,400,000
Compensation Expense, Performance Shares		43
Performance Shares, Vesting, Target Performance Level Met		214,734
Number of Options, Exercised			561,844
Weighted Average Exercise Price, Exercised			$ 117
Payments relating to treasury shares received for restricted stock tax payments and stock option exercises			240,676	430,677	154,242
Treasury Stock, Shares, Retired	7,560,480us-gaap_TreasuryStockSharesRetired
Treasury shares retired in connection with formation of ICE Group	741
Repurchases of common stock, Shares				3,231,484us-gaap_TreasuryStockSharesAcquired	416,858us-gaap_TreasuryStockSharesAcquired
Repurchases of common stock			(645)	645	53
Stock Repurchase Program, Remaining Authorized Repurchase Amount			405
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value			$ 177.00	$ 147.00	$ 113.25	$ 107.80
Employee Stock Option [Member]
Class of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value			39	24	20
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		3 years	3 years
Share Based Compensation Arrangement By Share Based Payment Award Awards Exercise Period			10 years
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized			6
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition			1 year 8 months
Number of Options, Exercised			561,844	689,046	794,264
Weighted Average Exercise Price, Exercised			$ 117	$ 90	$ 80
Employee Stock Option [Member] \| Minimum [Member]
Class of Stock [Line Items]
Stock Options Granted Expire Period			14 days
Employee Stock Option [Member] \| Maximum [Member]
Class of Stock [Line Items]
Stock Options Granted Expire Period			60 days
Employee Stock Option [Member] \| NYSE Euronext [Member]
Class of Stock [Line Items]
Granted, Number of options			3,644
Time Based And Performance Based Restricted Stock [Member]
Class of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			560,380	586,317	493,922
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized			98
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition			2 years
Time Based Restricted Units [Member]
Class of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			385,897	249,670	295,615
Performance Based Restricted Stock Units [Member]
Class of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			159,177
Stock-based compensation			17	9
Stock Granted, Value, Share-based Compensation, Net of Forfeitures			33
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Typical Vesting Period				3 years
Performance Based Restricted Stock Units [Member] \| Maximum [Member] \| Subsequent Event [Member] \| Restricted Stock [Member]
Class of Stock [Line Items]
Share Based Compensation Arrangement By Share Based Payment Shares Reserved For Future Issuance			351,310	154,912
NYSE Euronext Restricted Stock [Member]
Class of Stock [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period			239,488
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value			$ 197.80
If One Hundred Fifty Four Thousand Nine Hundred and Twelve Shares Vest [Member] \| Performance Based Restricted Stock Units [Member] \| Maximum [Member]
Class of Stock [Line Items]
Stock To Be Granted, Value, Share-based Compensation, Net of Forfeitures				31
If 147,535 Shares Vest [Member] \| Performance Based Restricted Stock Units [Member] \| Maximum [Member]
Class of Stock [Line Items]
Stock To Be Granted, Value, Share-based Compensation, Net of Forfeitures				30
Stock To Be Granted, Shares, Share-based Compensation, Net of Forfeitures				147,535
Additional Paid-in Capital [Member]
Class of Stock [Line Items]
Treasury shares retired in connection with formation of ICE Group	541
Retained Earnings [Member]
Class of Stock [Line Items]
Treasury shares retired in connection with formation of ICE Group	$ 200
Restricted Stock Units (RSUs) [Member]
Class of Stock [Line Items]
Common Stock, Capital Shares Reserved for Future Issuance		0	0