Clearing Operations - Narrative (Details) € in Millions	12 Months Ended
	Dec. 31, 2019 USD ($) clearing_house	Dec. 31, 2019 EUR (€)	Sep. 30, 2019 USD ($)	Dec. 31, 2018 USD ($)
Principal Transaction Revenue [Line Items]
Number of clearing organizations | clearing_house	6
Margin deposits and guaranty funds assets received or pledged	$ 126,000,000,000.0			$ 121,400,000,000
Default insurance term (in years)	3 years
Default insurance	$ 250,000,000			100,000,000
Net notional value of unsettled contracts	2,800,000,000,000
Maximum exposure, undiscounted	108,800,000,000
ICE NGX
Principal Transaction Revenue [Line Items]
Default insurance	100,000,000			$ 100,000,000
First-loss amount	15,000,000
ICE Clear Europe
Principal Transaction Revenue [Line Items]
Default insurance	75,000,000		$ 75,000,000
Committed repo	1,000,000,000.0
ICE Clear Credit
Principal Transaction Revenue [Line Items]
Default insurance	50,000,000		50,000,000
Committed repo	300,000,000	€ 250
Committed FX facilities | €		1,900
ICE Clear U.S.
Principal Transaction Revenue [Line Items]
Default insurance			$ 25,000,000
Committed repo	400,000,000
ICE Clear Netherlands
Principal Transaction Revenue [Line Items]
Committed FX facilities | €		€ 10
Letter of Credit | ICE NGX
Principal Transaction Revenue [Line Items]
Face amount	100,000,000
Additional losses under insurance policy	$ 100,000,000