Short-Term and Long-Term Restricted Cash, Cash Equivalents, and Investments - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Senior Notes
Restricted Cash and Cash Equivalents Items [Line Items]
Proceeds from (repayments of) debt	$ 500
United Kingdom Recognized Investment Exchanges
Restricted Cash and Cash Equivalents Items [Line Items]
Operating costs covered for period	6 months
Dcm Dco Designation For Ice Futures United States
Restricted Cash and Cash Equivalents Items [Line Items]
Operating costs covered for period	1 year
ICE Clear Europe
Restricted Cash and Cash Equivalents Items [Line Items]
First-loss amount		$ 15
ICE NGX
Restricted Cash and Cash Equivalents Items [Line Items]
First-loss amount	$ 15	$ 30