Clearing Operations - Guaranty Fund Contributions and Default Insurance (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Clearing Organizations [Line Items]
ICE Portion of Guaranty Fund Contribution	$ 389	$ 320
Default insurance	250	100
ICE Clear Europe
Clearing Organizations [Line Items]
ICE Portion of Guaranty Fund Contribution	233	206
Default insurance	75
ICE Clear U.S.
Clearing Organizations [Line Items]
ICE Portion of Guaranty Fund Contribution	103	61
Default insurance	25
ICE Clear Credit
Clearing Organizations [Line Items]
ICE Portion of Guaranty Fund Contribution	50	50
Default insurance	50
ICE Clear Netherlands
Clearing Organizations [Line Items]
ICE Portion of Guaranty Fund Contribution	2	2
ICE Clear Singapore
Clearing Organizations [Line Items]
ICE Portion of Guaranty Fund Contribution	1	1
ICE NGX
Clearing Organizations [Line Items]
Default insurance	$ 100	$ 100