Clearing Operations - Schedule of Cash and Invested Deposits (Details) - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025
Clearing Organizations [Line Items]
Original margin	$ 106,019	$ 71,684
Unsettled variation margin, net	363	740
Guaranty fund	9,295	7,884
Delivery contracts receivable, net	408	918
Total	116,085	81,226
ICE Clear Europe
Clearing Organizations [Line Items]
Original margin	67,301	40,627
Unsettled variation margin, net	0	0
Guaranty fund	3,968	3,075
Delivery contracts receivable, net	0	0
Total	71,269	43,702
ICE Clear Credit
Clearing Organizations [Line Items]
Original margin	27,893	23,965
Unsettled variation margin, net	0	0
Guaranty fund	4,521	3,986
Delivery contracts receivable, net	0	0
Total	32,414	27,951
ICE Clear U.S.
Clearing Organizations [Line Items]
Original margin	10,820	7,088
Unsettled variation margin, net	0	0
Guaranty fund	802	817
Delivery contracts receivable, net	0	0
Total	11,622	7,905
ICE NGX
Clearing Organizations [Line Items]
Original margin	0	0
Unsettled variation margin, net	363	740
Guaranty fund	0	0
Delivery contracts receivable, net	408	918
Total	771	1,658
Other ICE Clearing Houses
Clearing Organizations [Line Items]
Original margin	5	4
Unsettled variation margin, net	0	0
Guaranty fund	4	6
Delivery contracts receivable, net	0	0
Total	$ 9	$ 10