Clearing Organizations - ICE Clearing Houses Schedules (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Clearing Organizations [Line Items]
Original margin	$ 44,519	$ 50,170
Unsettled variation margin, net	228
Guaranty fund	5,966	4,980
Delivery contracts receivable/payable, net	509
Total	51,222	55,150
ICE Clear Europe
Clearing Organizations [Line Items]
Original margin	19,792	27,046
Unsettled variation margin, net	0
Guaranty fund	3,037	2,444
Delivery contracts receivable/payable, net	0
Total	22,829	29,490
ICE Clear Credit
Clearing Organizations [Line Items]
Original margin	20,703	16,833
Unsettled variation margin, net	0
Guaranty fund	2,607	2,135
Delivery contracts receivable/payable, net	0
Total	23,310	18,968
ICE Clear U.S.
Clearing Organizations [Line Items]
Original margin	3,898	6,184
Unsettled variation margin, net	0
Guaranty fund	299	316
Delivery contracts receivable/payable, net	0
Total	4,197	6,500
NGX
Clearing Organizations [Line Items]
Original margin	0
Unsettled variation margin, net	227
Guaranty fund	0
Delivery contracts receivable/payable, net	509
Total	736
Other ICE Clearing Houses
Clearing Organizations [Line Items]
Original margin	126	107
Unsettled variation margin, net	1
Guaranty fund	23	85
Delivery contracts receivable/payable, net	0
Total	$ 150	$ 192