Aggregate dividends declared during the period for each share of common stock outstanding.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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Amount of paid and unpaid common stock dividends declared with the form of settlement in cash.

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Nasdaq Stockholders' Equity (Schedule of Dividends Declared) (Details) - USD ($) $ / shares in Units, $ in Millions								12 Months Ended
	Dec. 30, 2016	Oct. 25, 2016	Sep. 30, 2016	Jul. 26, 2016	Jun. 24, 2016	Mar. 28, 2016	Jan. 27, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Dividends Payable [Line Items]
Dividend per common share (in dollars per share)								$ 1.21	$ 0.90	$ 0.58
Total Amount Paid								$ 200	$ 149	$ 98
January 27, 2016
Dividends Payable [Line Items]
Dividend per common share (in dollars per share)							$ 0.25
Total Amount Paid						$ 41
March 28, 2016
Dividends Payable [Line Items]
Dividend per common share (in dollars per share)						$ 0.32
Total Amount Paid					$ 53
July 26, 2016
Dividends Payable [Line Items]
Dividend per common share (in dollars per share)				$ 0.32
Total Amount Paid			$ 53
October 25, 2016
Dividends Payable [Line Items]
Dividend per common share (in dollars per share)		$ 0.32
Total Amount Paid	$ 53