Clearing Operations - Assets Pledged by Clearing Members (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Original Margin
Original margin:
Government securities at face value	$ 56,978	$ 53,085
Letters of credit	2,469	2,556
NGX cash deposits	362	605
Total	59,809	56,246
Guaranty Fund
Guaranty fund:
Government securities at face value	1,241	1,174
ICE Clear Europe | Original Margin
Original margin:
Government securities at face value	30,635	29,887
Letters of credit	0	0
NGX cash deposits	0	0
Total	30,635	29,887
ICE Clear Europe | Guaranty Fund
Guaranty fund:
Government securities at face value	475	654
ICE Clear Credit | Original Margin
Original margin:
Government securities at face value	13,710	12,990
Letters of credit	0	0
NGX cash deposits	0	0
Total	13,710	12,990
ICE Clear Credit | Guaranty Fund
Guaranty fund:
Government securities at face value	523	256
ICE Clear U.S. | Original Margin
Original margin:
Government securities at face value	12,633	10,208
Letters of credit	0	0
NGX cash deposits	0	0
Total	12,633	10,208
ICE Clear U.S. | Guaranty Fund
Guaranty fund:
Government securities at face value	243	264
ICE NGX | Original Margin
Original margin:
Government securities at face value	0	0
Letters of credit	2,469	2,556
NGX cash deposits	362	605
Total	2,831	3,161
ICE NGX | Guaranty Fund
Guaranty fund:
Government securities at face value	$ 0	$ 0