Clearing Operations - Schedule of Cash and Invested Deposits (Details) - USD ($) $ in Millions	Sep. 30, 2025	Dec. 31, 2024
Clearing Organizations [Line Items]
Original margin	$ 76,817	$ 76,343
Unsettled variation margin, net	854	934
Guaranty fund	8,141	6,330
Delivery contracts receivable/payable, net	431	705
Total	86,243	84,312
ICE Clear Europe
Clearing Organizations [Line Items]
Original margin	44,786	45,427
Unsettled variation margin, net	0	0
Guaranty fund	2,450	2,353
Delivery contracts receivable/payable, net	0	0
Total	47,236	47,780
ICE Clear Credit
Clearing Organizations [Line Items]
Original margin	24,079	23,843
Unsettled variation margin, net	0	0
Guaranty fund	4,900	3,312
Delivery contracts receivable/payable, net	0	0
Total	28,979	27,155
ICE Clear U.S.
Clearing Organizations [Line Items]
Original margin	7,947	7,069
Unsettled variation margin, net	0	0
Guaranty fund	786	660
Delivery contracts receivable/payable, net	0	0
Total	8,733	7,729
ICE NGX
Clearing Organizations [Line Items]
Original margin	0	0
Unsettled variation margin, net	854	934
Guaranty fund	0	0
Delivery contracts receivable/payable, net	431	705
Total	1,285	1,639
Other ICE Clearing Houses
Clearing Organizations [Line Items]
Original margin	5	4
Unsettled variation margin, net	0	0
Guaranty fund	5	5
Delivery contracts receivable/payable, net	0	0
Total	$ 10	$ 9