Clearing Operations - Narrative (Details) € in Millions	1 Months Ended			9 Months Ended
	Sep. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Jan. 31, 2019 USD ($)	Sep. 30, 2019 USD ($) clearing_house	Sep. 30, 2019 EUR (€)	Dec. 31, 2018 USD ($)
Principal Transaction Revenue [Line Items]
Number of clearing houses | clearing_house				6
Margin deposits and guaranty funds assets received or pledged	$ 122,100,000,000			$ 122,100,000,000		$ 121,400,000,000
Default insurance term (in years)				3 years
Maximum exposure, undiscounted	105,600,000,000			$ 105,600,000,000
ICE Clear Europe
Principal Transaction Revenue [Line Items]
Increase in contribution to guaranty fund			$ 27,000,000
Committed repo	1,000,000,000.0			1,000,000,000.0
ICE Clear Credit
Principal Transaction Revenue [Line Items]
Committed repo	300,000,000			300,000,000	€ 250
Committed FX facilities | €					1,900
ICE Clear U.S.
Principal Transaction Revenue [Line Items]
Increase in contribution to guaranty fund	35,000,000	$ 7,000,000
Committed repo	250,000,000			250,000,000
ICE Clear Netherlands
Principal Transaction Revenue [Line Items]
Committed FX facilities | €					€ 10
Letter of Credit | ICE NGX
Principal Transaction Revenue [Line Items]
Debt instrument, face amount	$ 100,000,000			100,000,000
Repayments of secured debt				15,000,000
Additional losses under insurance policy				$ 100,000,000