Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2017

Accounting Policies [Abstract]

Schedule of Allowance for Doubtful Accounts

A reconciliation of the beginning and ending amount of allowance for doubtful accounts is as follows for the years ended December 31, 2017, 2016 and 2015 (in millions):

	Year Ended December 31,
	2017			2016		2015
Beginning balance of allowance for doubtful accounts	$	7		$	2	$	1
Bad debt expense	4			5		2
Charge-offs	(5		)	—		(1		)
Ending balance of allowance for doubtful accounts	$	6		$	7	$	2

Schedule of New Accounting Pronouncements and Changes in Accounting Principles

Adoption of the standard related to ASC 606 will impact our reported results as follows, driven primarily by the accelerated recognition of listings fee revenue in our NYSE business (in millions, except earnings per share):

	As Reported			New Revenue Standard Adjustment			As Adjusted*
Year ended December 31, 2017
Total revenues	$	5,834		$	10		$	5,844
Total revenues, less transaction-based expenses	4,629			10			4,639
Income tax benefit**	(25		)	(2		)	(27		)
Net income attributable to Intercontinental Exchange, Inc.	2,514			12			2,526
Diluted earnings per share	$	4.23		$	0.02		$	4.25

	As Reported		New Revenue Standard Adjustment		As Adjusted*
Year ended December 31, 2016
Total revenues	$	5,958	$	12	$	5,970
Total revenues, less transaction-based expenses	4,499		12		4,511
Income tax expense	580		5		585
Net income attributable to Intercontinental Exchange, Inc.	1,422		7		1,429
Diluted earnings per share	$	2.37	$	0.01	$	2.38

	As Reported		New Revenue Standard Adjustment		As Adjusted*
Year ended December 31, 2015
Total revenues	$	4,682	$	19	$	4,701
Total revenues, less transaction-based expenses	3,338		19		3,357
Income tax expense	358		8		366
Net income attributable to Intercontinental Exchange, Inc.	1,274		11		1,285
Diluted earnings per share	$	2.28	$	0.02	$	2.30

	As Reported		New Revenue Standard Adjustment			As Adjusted*
As of December 31, 2017
Deferred revenue, current	$	121	$	(2	)	$	119
Deferred revenue, non-current	143		(45		)	98
Net deferred tax liabilities	2,280		13			2,293
Retained earnings	6,825		34			6,859

	As Reported		New Revenue Standard Adjustment			As Adjusted*
As of December 31, 2016
Deferred revenue, current	$	114	$	1		$	115
Deferred revenue, non-current	123		(38		)	85
Net deferred tax liabilities	2,954		15			2,969
Retained earnings	4,789		22			4,811

*We were required to adopt ASC 606 on January 1, 2018. Adjusted figures in the tables above do not impact the 2017 financial results included in this report. The adjustments will be retrospectively reflected in the financial results beginning with the quarter ending March 31, 2018.

**The 2017 income tax benefit adjustment in the table above includes a $6 million deferred tax benefit resulting from the U.S. corporate income tax reduction as part of the TCJA enactment in the fourth quarter of 2017.     

Schedule of Cash and Cash Equivalents

The following table provides a reconciliation of cash and cash equivalents, short-term restricted cash and cash equivalents, and long-term restricted cash and cash equivalents reported within our consolidated balance sheets that sum to the total of the same such amounts shown in our consolidated statements of cash flows (in millions).

	As of December 31,
	2017		2016		2015
Cash and cash equivalents	$	535	$	407	$	627
Short-term restricted cash and cash equivalents	769		679		657
Long-term restricted cash and cash equivalents	264		264		263
Total cash, cash equivalents and restricted cash and cash equivalents shown in our statements of cash flows	$	1,568	$	1,350	$	1,547