v2.4.0.8

Deferred Revenue (Changes in Deferred Revenue) (Details) (USD $) In Millions, unless otherwise specified | 3 Months Ended
--- | ---
Mar. 31, 2014 | Mar. 31, 2013
Deferred Revenue Arrangement [Line Items] |  |  |  |
Balance | $ 294 |  | $ 295 |
Additions | 421 | [1] | 194 | [1]
Amortization | (216) | [1] | (89) | [1]
Translation adjustment | (1) |  | (2) |
Balance | 498 |  | 398 |
Initial Listing Revenues [Member] |  |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |  |
Balance | 41 |  | 36 |
Additions | 5 | [1] | 2 | [1]
Amortization | (3) | [1] | (4) | [1]
Balance | 43 |  | 34 |
Listing of Additional Shares Revenues [Member] |  |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |  |
Balance | 75 |  | 78 |
Additions | 10 | [1] | 8 | [1]
Amortization | (10) | [1] | (10) | [1]
Balance | 75 |  | 76 |
Annual Renewal and Other Revenues [Member] |  |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |  |
Balance | 26 |  | 32 |
Additions | 197 | [1] | 168 | [1]
Amortization | (73) | [1] | (55) | [1]
Translation adjustment |  |  | (7) |
Balance | 150 |  | 138 |
Technology Solutions [Member] |  |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |  |
Balance | 152 | [2] | 149 | [2]
Additions | 209 | [1],[2] | 16 | [1],[2]
Amortization | (130) | [1],[2] | (20) | [1],[2]
Translation adjustment | (1) | [2] | 5 | [2]
Balance | 230 | [2],[3] | 150 | [2]
Borsa Istanbul Cost Method Investment[Member] |  |  |  |
Deferred Revenue Arrangement [Line Items] |  |  |  |
Additions | $ 75 |  |  |
[1] | The additions and amortization for initial listing revenues, listing of additional shares revenues and annual renewal and other revenues primarily reflect revenues from our U.S. listing services business. The additions to Technology Solutions revenues during the three months ended March 31, 2014 include $75 million related to the Borsa Istanbul market technology agreement. See “Cost Method Investments,” of Note 6, “Investments,” for further discussion.
[2] | Technology Solutions deferred revenues primarily include revenues from our Market Technology delivered client contracts in the support phase charged during the period and our Corporate Solutions subscription based contracts, which are primarily billed quarterly in advance. For our Market Technology contracts, where customization and significant modifications to the software are made to meet the needs of our customers, total revenues, as well as costs incurred, are deferred until significant modifications are completed and delivered. Once delivered, deferred revenue and the related deferred costs are recognized over the post contract support period. For these Market Technology contracts, we have included the deferral of costs in other current assets and other non-current assets in the Condensed Consolidated Balance Sheets. The amortization of Technology Solutions deferred revenue primarily includes revenues earned from Market Technology client contracts and Corporate Solutions subscription based contracts recognized during the period.
[3] | The timing of recognition of our deferred Technology Solutions revenues is primarily dependent upon the completion of customization and any significant modifications made pursuant to existing Market Technology contracts and the timing of Corporate Solutions subscription-based contracts. As such, as it relates to Market Technology revenues, the timing represents our best estimate.

X
- Definition Deferred Revenue Foreign Currency Translation Adjustment + References No definition available. + Details
Name: | ndaq_DeferredRevenueForeignCurrencyTranslationAdjustment
Namespace Prefix: | ndaq_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 13 -Section A Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 13.A.4(a).Q1 Response) -URI http://asc.fasb.org/extlink&oid=27012821&loc=d3e214044-122780 + Details
Name: | us-gaap_DeferredRevenue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of deferred revenue recognized for transactions arising during the current reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an Entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 13.A.4(a).Q1) -URI http://asc.fasb.org/extlink&oid=27012821&loc=d3e214044-122780 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 13 -Section A + Details
Name: | us-gaap_DeferredRevenueAdditions
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_DeferredRevenueArrangementLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of previously reported deferred or unearned revenue that was recognized as revenue during the period. Deferred revenue is a liability related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 13.A.4(a).Q1) -URI http://asc.fasb.org/extlink&oid=27012821&loc=d3e214044-122780 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Staff Accounting Bulletin (SAB) -Number Topic 13 -Section A + Details
Name: | us-gaap_DeferredRevenueRevenueRecognized
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration