Clearing Operations - Cash and Cash Equivalent Deposits (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Clearing Organizations [Line Items]
Original margin	$ 58,667	$ 56,630
Unsettled variation margin, net	229	417
Guaranty fund	6,768	6,188
Delivery contracts receivable/payable, net	324	720
Total	65,988	63,955
ICE Clear Europe
Clearing Organizations [Line Items]
Original margin	28,971	27,597
Unsettled variation margin, net	0	0
Guaranty fund	4,198	3,267
Delivery contracts receivable/payable, net	0	0
Total	33,169	30,864
ICE Clear Credit
Clearing Organizations [Line Items]
Original margin	22,534	22,770
Unsettled variation margin, net	0	0
Guaranty fund	2,120	2,456
Delivery contracts receivable/payable, net	0	0
Total	24,654	25,226
ICE Clear U.S.
Clearing Organizations [Line Items]
Original margin	7,157	6,260
Unsettled variation margin, net	0	0
Guaranty fund	445	460
Delivery contracts receivable/payable, net	0	0
Total	7,602	6,720
ICE NGX
Clearing Organizations [Line Items]
Original margin	0	0
Unsettled variation margin, net	229	417
Guaranty fund	0	0
Delivery contracts receivable/payable, net	324	720
Total	553	1,137
Other ICE Clearing Houses
Clearing Organizations [Line Items]
Original margin	5	3
Unsettled variation margin, net	0	0
Guaranty fund	5	5
Delivery contracts receivable/payable, net	0	0
Total	10	8
Futures and options | ICE Clear Europe
Clearing Organizations [Line Items]
Total	27,900	25,800
CDS | ICE Clear Europe
Clearing Organizations [Line Items]
Total	$ 5,300	$ 5,100