Clearing Operations - Schedule of Cash and Cash Equivalents (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Clearing Organizations [Line Items]
Cash deposits	$ 86,221	$ 82,149
Invested deposits, delivery contracts receivable and unsettled variation margin	2,947	2,163
ICE NGX
Clearing Organizations [Line Items]
Cash deposits	15
National bank account \| ICE Clear Europe
Clearing Organizations [Line Items]
Cash deposits	6,190	4,817
National bank account \| ICE Clear Credit
Clearing Organizations [Line Items]
Cash deposits	18,702	20,369
Reverse repo \| ICE Clear Europe
Clearing Organizations [Line Items]
Cash deposits	43,511	37,276
Reverse repo \| ICE Clear Credit
Clearing Organizations [Line Items]
Cash deposits	5,245	4,089
Reverse repo \| ICE Clear U.S.
Clearing Organizations [Line Items]
Cash deposits	7,675	7,382
Sovereign debt \| ICE Clear Europe
Clearing Organizations [Line Items]
Cash deposits	840	4,515
Sovereign debt \| ICE Clear U.S.
Clearing Organizations [Line Items]
Cash deposits	497	347
Demand deposits \| ICE Clear Europe
Clearing Organizations [Line Items]
Cash deposits	153	648
Demand deposits \| ICE Clear Credit
Clearing Organizations [Line Items]
Cash deposits	3,399	2,697
Demand deposits \| Other ICE Clearing Houses
Clearing Organizations [Line Items]
Cash deposits	9	9
Unsettled variation margin and delivery contracts receivable \| ICE NGX
Clearing Organizations [Line Items]
Invested deposits, delivery contracts receivable and unsettled variation margin	1,314	1,639
Invested deposits - sovereign debt \| ICE Clear Europe
Clearing Organizations [Line Items]
Invested deposits, delivery contracts receivable and unsettled variation margin	$ 1,633	$ 524