Clearing Operations - Cash and Cash Equivalents Deposits (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Clearing Organizations [Line Items]
Original margin	$ 56,630	$ 44,519
Unsettled variation margin, net	417	228
Guaranty fund	6,188	5,966
Delivery contracts receivable/payable, net	720	509
Total	63,955	51,222
ICE Clear Europe
Clearing Organizations [Line Items]
Original margin	27,597	19,792
Unsettled variation margin, net	0	0
Guaranty fund	3,267	3,037
Delivery contracts receivable/payable, net	0	0
Total	30,864	22,829
ICE Clear Credit
Clearing Organizations [Line Items]
Original margin	22,770	20,703
Unsettled variation margin, net	0	0
Guaranty fund	2,456	2,607
Delivery contracts receivable/payable, net	0	0
Total	25,226	23,310
ICE Clear U.S.
Clearing Organizations [Line Items]
Original margin	6,260	3,898
Unsettled variation margin, net	0	0
Guaranty fund	460	299
Delivery contracts receivable/payable, net	0	0
Total	6,720	4,197
ICE NGX
Clearing Organizations [Line Items]
Original margin	0	0
Unsettled variation margin, net	417	227
Guaranty fund	0	0
Delivery contracts receivable/payable, net	720	509
Total	1,137	736
Other ICE Clearing Houses
Clearing Organizations [Line Items]
Original margin	3	126
Unsettled variation margin, net	0	1
Guaranty fund	5	23
Delivery contracts receivable/payable, net	0	0
Total	8	150
Futures and options | ICE Clear Europe
Clearing Organizations [Line Items]
Total	25,800	18,500
CDS | ICE Clear Europe
Clearing Organizations [Line Items]
Total	$ 5,100	$ 4,300