Clearing Operations - Cash and Cash Equivalent Deposits (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Clearing Organizations [Line Items]
Original margin	$ 77,948	$ 57,267
Unsettled variation margin, net	137	255
Guaranty fund	7,397	6,880
Delivery contracts receivable/payable, net	418	585
Total	85,900	64,987
ICE Clear Europe
Clearing Organizations [Line Items]
Original margin	34,666	28,318
Unsettled variation margin, net	0	0
Guaranty fund	4,247	4,144
Delivery contracts receivable/payable, net	0	0
Total	38,913	32,462
ICE Clear Europe | Futures and options
Clearing Organizations [Line Items]
Total	32,300	27,400
ICE Clear Europe | CDS
Clearing Organizations [Line Items]
Total	6,600	5,100
ICE Clear Credit
Clearing Organizations [Line Items]
Original margin	37,463	22,145
Unsettled variation margin, net	0	0
Guaranty fund	2,611	2,268
Delivery contracts receivable/payable, net	0	0
Total	40,074	24,413
ICE Clear U.S.
Clearing Organizations [Line Items]
Original margin	5,815	6,802
Unsettled variation margin, net	0	0
Guaranty fund	534	463
Delivery contracts receivable/payable, net	0	0
Total	6,349	7,265
ICE NGX
Clearing Organizations [Line Items]
Original margin	0	0
Unsettled variation margin, net	137	255
Guaranty fund	0	0
Delivery contracts receivable/payable, net	418	585
Total	555	840
Other ICE Clearing Houses
Clearing Organizations [Line Items]
Original margin	4	2
Unsettled variation margin, net	0	0
Guaranty fund	5	5
Delivery contracts receivable/payable, net	0	0
Total	$ 9	$ 7