Short-Term and Long-Term Restricted Cash and Cash Equivalents - Narrative (Details) - USD ($) $ in Millions	1 Months Ended			12 Months Ended
	Sep. 30, 2019	Mar. 31, 2019	Jan. 31, 2019	Dec. 31, 2019	Dec. 31, 2018
Restricted Cash and Cash Equivalents Items [Line Items]
Short-term restricted cash and cash equivalents				$ 943	$ 818
Contribution of own cash to guaranty fund				$ 404	320
United Kingdom Recognized Investment Exchanges
Restricted Cash and Cash Equivalents Items [Line Items]
Operating costs covered for period				6 months
Ice Futures Europe
Restricted Cash and Cash Equivalents Items [Line Items]
Short-term restricted cash and cash equivalents				$ 90	90
ICE Clear Europe
Restricted Cash and Cash Equivalents Items [Line Items]
Short-term restricted cash and cash equivalents				465	435
Increase in contribution to guaranty fund			$ 27
ICE Clear U.S.
Restricted Cash and Cash Equivalents Items [Line Items]
Increase in contribution to guaranty fund	$ 35	$ 7
ICE NGX
Restricted Cash and Cash Equivalents Items [Line Items]
First-loss amount				$ 15
Dcm Dco Designation For Ice Futures United States
Restricted Cash and Cash Equivalents Items [Line Items]
Operating costs covered for period				1 year
DCM, DCO, SDR, and SEF Designated Entities
Restricted Cash and Cash Equivalents Items [Line Items]
Operating costs and expenses				$ 239	213
ICE Benchmark Administration, Clear Netherlands, Clear Canada, Trade Vault UK, Endex and Clear Singapore
Restricted Cash and Cash Equivalents Items [Line Items]
Short-term restricted cash and cash equivalents				104	67
Super Derivatives
Restricted Cash and Cash Equivalents Items [Line Items]
Short-term restricted cash and cash equivalents				$ 45	$ 23