Clearing Operations - Assets Pledged by Clearing Members (Details) - USD ($) $ in Millions	Sep. 30, 2020	Dec. 31, 2019
Original Margin
Original margin:
Government securities at face value	$ 72,396	$ 56,978
Letters of credit	2,172	2,469
ICE NGX cash deposits	305	362
Total	74,873	59,809
Guaranty Fund
Guaranty fund:
Government securities at face value	1,295	1,241
ICE Clear Europe | Original Margin
Original margin:
Government securities at face value	42,022	30,635
Letters of credit	0	0
ICE NGX cash deposits	0	0
Total	42,022	30,635
ICE Clear Europe | Guaranty Fund
Guaranty fund:
Government securities at face value	502	475
ICE Clear Credit | Original Margin
Original margin:
Government securities at face value	8,846	13,710
Letters of credit	0	0
ICE NGX cash deposits	0	0
Total	8,846	13,710
ICE Clear Credit | Guaranty Fund
Guaranty fund:
Government securities at face value	594	523
ICE Clear U.S. | Original Margin
Original margin:
Government securities at face value	21,528	12,633
Letters of credit	0	0
ICE NGX cash deposits	0	0
Total	21,528	12,633
ICE Clear U.S. | Guaranty Fund
Guaranty fund:
Government securities at face value	199	243
ICE NGX | Original Margin
Original margin:
Government securities at face value	0	0
Letters of credit	2,172	2,469
ICE NGX cash deposits	305	362
Total	2,477	2,831
ICE NGX | Guaranty Fund
Guaranty fund:
Government securities at face value	$ 0	$ 0