Clearing Operations - Cash and Cash Equivalent Deposits (Details) - USD ($) $ in Millions	Jun. 30, 2019	Dec. 31, 2018
Clearing Organizations [Line Items]
Original margin	$ 53,878	$ 56,630
Unsettled variation margin, net	245	417
Guaranty fund	6,883	6,188
Delivery contracts receivable/payable, net	347	720
Total	61,353	63,955
ICE Clear Europe
Clearing Organizations [Line Items]
Original margin	25,229	27,597
Unsettled variation margin, net	0	0
Guaranty fund	4,322	3,267
Delivery contracts receivable/payable, net	0	0
Total	29,551	30,864
ICE Clear Credit
Clearing Organizations [Line Items]
Original margin	22,051	22,770
Unsettled variation margin, net	0	0
Guaranty fund	2,103	2,456
Delivery contracts receivable/payable, net	0	0
Total	24,154	25,226
ICE Clear US
Clearing Organizations [Line Items]
Original margin	6,592	6,260
Unsettled variation margin, net	0	0
Guaranty fund	452	460
Delivery contracts receivable/payable, net	0	0
Total	7,044	6,720
ICE NGX
Clearing Organizations [Line Items]
Original margin	0	0
Unsettled variation margin, net	245	417
Guaranty fund	0	0
Delivery contracts receivable/payable, net	347	720
Total	592	1,137
Other ICE Clearing Houses
Clearing Organizations [Line Items]
Original margin	6	3
Unsettled variation margin, net	0	0
Guaranty fund	6	5
Delivery contracts receivable/payable, net	0	0
Total	12	8
Futures and options | ICE Clear Europe
Clearing Organizations [Line Items]
Total	24,700	25,800
CDS | ICE Clear Europe
Clearing Organizations [Line Items]
Total	$ 4,900	$ 5,100